> Many people (in particular unemancipated minors) might likewise consider it infantilizing to place a minimum age requirement on drivers' licenses, firearms, alcohol, etc.

It seems unremarkable that we tend to treat actual children like children, but it's far less mundane to propose treating mature adults like children on the presupposition that due to their cultural or ethnic origins, they must exist in an immutable childlike state. The latter is an extremely dangerous notion, and we ought to be wary of anyone who advances it.

> yet the consensus is that doing so is for the greater good.

I'm not sure that any 'greater good' calculus is part of any consensus whatsoever.