It's incredibly hard for parents to intervene. Even if you ban your child from using it, since every other kid is using it, the harmful effects are still there.
The best you can do is try to explain and contextualise everything your kid might be seeing, which is very hard to do.
Also, not all parents are engaged with their kids as well as they should be. Having bad parents doesn't mean you're not worth protecting.
> Or ban having sex without the use of contraceptives if you are so keen on banning.
I'm not sure what that means.