Worst age restriction I've seen was "If Star Wars Characters Were Charged For Their Crimes"

MOUSAIT?? IS THAT YOU???

I'm not Mousait. but I do hate how that video I mentioned in the title got age-restricted.

It's Star Wars, it's like putting an age restriction on a Rated G movie which would be even worse.

YouTube censors that bullshit, but not literal p0rn

It's because age restricted videos are locked behind a paywall

Depends what it's educational about.
Most subjects would be fine, but if it's that once science subject...