Without wishing to completely sidetrack the discussion...

> I like your libertarian approach.

Their idea is to prohibit government...

What we are seeing in Australia is a community that has decided that the best course of action is to say that children under the age of 16 are generally too young to have the skills to deal with some social media.

You yourself are comfortable with the idea that a 5 year old is far too young for social media (and kids that age /can/ work devices to access social media if they want)

The question really is, at what age should we draw the line.

16 is arbitrary, but the ones most able to manage the interactions are the ones that will have the skills for circumventing the blanket ban, and the ones that aren't that savvy, won't.