VRET in Children and Teens: Minimum Age and Parental Consent

Age 10 as the operational threshold, not a legal age

Spanish regulation does not set a minimum age for using virtual reality in psychological practice. The clinical recommendation we have seen become established in practice at Hospital del Niño Jesús and similar centers is age 10 as the operational threshold. It is not law; it is clinical prudence.

Three reasons support that threshold:

1. Vestibular tolerance and headset weight. The Meta Quest 3 weighs 515 g without the strap. A child's neck copes worse with the imbalance, and cybersickness is more common under age 10. It is not an absolute contraindication, but duration and rest breaks need adjusting.
2. Ability to report SUDS reliably. A 0-10 scale requires abstract understanding that typically consolidates around age 9-10. Below that, the psychologist works with emoji faces or direct observation, which reduces the precision of the exposure protocol.
3. Coherent consent from the child. Although the parent signs the consent form, the child still needs to understand what is going to happen and be able to ask to stop. Below age 10 that understanding is fragile; the psychologist leads the session more unilaterally, which breaks the logic of consented, progressive exposure.

For children under 10 with a clinical phobia, the reasonable path is usually therapeutic play, drawing-assisted narration, and very gradual in-vivo exposure. For complex cases in practice, we have an article documenting the clinical range that does respond well to VR.

Parental consent: how it is signed in Spain by age

The Spanish legal framework distinguishes three relevant brackets for healthcare consent:

Under 12

Informed consent signed entirely by both parents (or legal guardian). The child receives age-appropriate information and their assent, not their consent, is documented. If the parents are separated with joint custody, both signatures are required.

Ages 12 to 16

Informed consent signed by a parent plus informed consent from the minor (Spanish Law 41/2002, art. 9.4, following the 2015 reform). Both sign. This is the most delicate bracket because the adolescent can object to the intervention even if the parents want it, and that objection carries real clinical weight.

Ages 16 and 17

Mature minor: consent from the minor themselves if they have sufficient maturity to understand the treatment. The psychologist assesses maturity and documents it. In VR treatment, most adolescents age 16 and up meet this criterion.

Informed consent for VR is specific; it is not covered by the generic psychotherapy consent form. For an operational template (minor's consent + parent's consent + child's assent), the clinical-record documentation protocol for VR has editable templates.

Typical case 1 — Dog phobia after a bite in an 11-year-old

An 11-year-old boy, no vestibular history, with a dog phobia following a minor bite at age 9. Avoids streets with loose dogs, anxiety attacks when hearing nearby barking. Previous imaginal treatment limited by difficulty sustaining the mental image.

Typical treatment plan:

1. Session 1 — Headset acclimatization, no phobic stimulus. Validate tolerance and baseline SUDS.
2. Sessions 2-3 — Small, still dog at a distance. Repeat until SUDS ≤4.
3. Sessions 4-5 — Medium dog with controlled movement, soft barking. Anticipated SUDS 60-70.
4. Sessions 6-7 — Gradual approach of the dog into the child's field of view. Maintain a minimum psychological safety distance.
5. Session 8 — In-vivo transition in a park with a dog controlled by an owner known to the psychologist. Parent plus psychologist accompaniment.

Expected response rate for this profile: high consolidation at 12 weeks if the in-vivo transition is completed. The detailed dog phobia protocol has the full hierarchy with age-specific adjustments, and sits alongside the rest of our VR scenario catalog.

Typical case 2 — Pre-vaccination needle phobia in a 14-year-old

A 14-year-old adolescent with clinical belonephobia who has missed the last two recommended vaccination rounds and requires mandatory intervention under the school vaccination program. Comorbidity: marked anticipatory anxiety, self-induced vomiting from stress during previous medical visits.

Typical treatment plan (short, 5-6 sessions):

1. Session 1 — Acclimatization plus psychoeducation on the vasovagal response and its clinical difference from fear.
2. Session 2 — Empty medical office scenario, no staff. Validate tolerance to the context.
3. Session 3 — Medical staff entering the scenario, no needle. Expected SUDS 50-65.
4. Session 4 — Visible needle preparation from a safe distance.
5. Session 5 — Fully simulated procedure, including bared arm and administration. Anticipated SUDS 80.
6. Session 6 — Real vaccination, at the same site where the shot will be given, psychologist accompaniment if possible.

If your practice does not have the medical needle scenario in VR but does have the generic hospital one (Hospital scenario), the first phase can be run the same way with an adapted pre-session briefing.

The three common mistakes with minors

Mistakes that psychologists new to pediatric VR make systematically:

1. Sessions that run too long. Adults tolerate 20-30 min; the recommendation for minors is 10-15 min with a mid-session break. Visual and neck fatigue collapses the habituation curve.
2. Insufficient pre-session briefing with the child. The child needs to understand the scenario before putting on the headset. Walk them through what they are going to see; do not surprise them once inside the headset. Surprise undermines the sense of perceived control that exposure depends on.
3. Parent absent from initial sessions. Although the parent should not intervene, their presence in the room (not in the headset) during sessions 1-3 improves adherence and reduces dropout. From session 4 onward, they can wait outside.

If you have never treated a pediatric case with VR before, the article on common mistakes made by psychologists new to VRET covers the rest of the catalog (not specific to minors, but about 80% still applies).

When the child asks to stop

This is the most important clinical difference between adult and pediatric VR. The child asks to stop sooner, and the psychologist has to honor it or lose the therapeutic alliance for the rest of the treatment.

Operational rule: when the child asks to stop, stop immediately. No negotiating, no "just a little longer." Remove the headset, verbally validate what they accomplished up to that point, and let the child decide whether to go back in during this session or leave it for the next one.

The pediatric patient who learns that asking to stop is respected commits more deeply to the next exposure. The one who learns that their signals are ignored drops out of treatment within two or three sessions.

This article is for informational purposes for psychology professionals. It is not clinical advice for any individual case and does not replace the judgment of the licensed psychologist in charge. VRET is professional clinical-support software, not a CE-marked medical device.