'Preventing children from buying guns is Nazism!'

Actually, this sentiment is a 'litmus test' for common sense.

We use age discrimination universally in all affairs, across the globe, across all cultures.

Of course the same thing is going to apply to 'content', it's just a lot harder and creates ugly externalizations.

It's a real problem, with no real solutions, at least not yet.

Nobody is arguing that gun shops shouldn’t check buyers’ ID. That’s a strawman.

The situation is more like we set up a new system of checkpoint booths on every highway at city limits, and anyone entering the city gets their ID checked, and that is justified by claiming that it’s so children can’t buy guns.