

but I don’t see an alternative
An alternative to what? This will not prevent children from accessing content. The weak point is the humans that willingly allows it in the first place. Having an extra step won’t stop them if it can help them not be bothered by actually having to look after their kid.
This is not sacrificing freedom to gain security; it’s sacrificing freedom to not gain anything.



That would be a good way to do it, if the goal was to be able to restrict/protect kids. Unfortunately, this have very little to do with that.