Age assurance methods like biometric facial age estimation do not place a burden beyond that of physical ID checks, or on those without official IDs. The burden placed on adults by online age checks is sufficiently limited to be justified by the policy objective they are intended to meet, the AVPA argues in the amicus brief. It is not more of a burden, from a privacy perspective, than an in-person ID check, and in many cases is less-so.
Source: www.biometricupdate.com