Meta will use AI to analyze height and bone structure to identify if users are underage

The framing as a child-safety measure does considerable work to preempt criticism, but anthropometric inference, estimating age from height and bone structure, has well-documented accuracy disparities across body types, ethnicities, and developmental variation. Meta has not disclosed the false-positive rate for minors who present as adults, or vice versa, and those numbers matter enormously for what this system actually does in practice.

This sits directly alongside the Disneyland facial recognition story from early May, where we noted growing corporate comfort with biometric systems deployed in consumer spaces before regulatory frameworks catch up. Meta's move extends that pattern: computer vision infrastructure originally justified for safety or personalization becomes normalized through incremental rollout, with contested markets absorbing the early friction. The robotics acquisition we covered from May 2 is also relevant context, not as a direct connection, but as evidence that Meta is building toward a much broader physical-world sensing capability, and age inference from skeletal structure is a meaningful data point in that trajectory.

Watch whether the EU's AI Act enforcement bodies classify this system as a prohibited biometric categorization tool under Article 5, which would force Meta to either withdraw from European markets or publicly contest the classification before the end of 2026.