> traditionally the age gate for cigarettes and booze is for the seller to look at your ID just to verify your age, then forget you. The process was not to establish your identity and follow you around forever, tracking and selling your behavioral data, which is a way these Internet based age gates have been implemented

I think that's a bit of a strawman, there exist solutions to this problem that decouple who reads the ID from the party that needs information about it, e.g. being above a certain age. Maybe it matters here how it's implemented, can that be regulated?