Not entirely sure what you are trying to say, other than you don't really care as long as you are not the one who is marginalised.

Anyway it's generally a tradeoff: is it worth doing it? By adding very strict age verification systems and marginalising people, do we make society globally better or not? Will those age verification systems work to prevent underage people from accessing the stuff we don't want them to access in the first place? Not clear. If they do, will it result in underage people being better? Not clear. And if it does, will it have been worth the damage on the people it marginalised? Not clear.