What makes it even more confusing to me is that it doesn't even work - I remember when I was a kid that as soon as one person at school figured out how to bypass safety controls we'd all know, and this is trivial with a VPN or just a well-worded web search.
Censorship just isn't a solution, we need open discussion around sensitive topics and resources for how to approach them safely (and, of course, warnings when it's not possible to be completely safe so people can make up their own minds on what risks they're comfortable with).