Counterpoint, I clicked on many random links, and saw many things I probably "shouldn't have" as a kid/teen, still turned out alright I think.
Even on Omegle in particular, after like one day, you gotta expect the dicks and move on lol
I frequented 4chan at age 13-16 so saw pretty much everything one could see on the Internet.
I'm not going to argue it was good or bad, but it's not like it permanently fucked me up to the point of not being able to function as an adult later in life.
There's also the privacy vs protection argument here, if sites require verification that you're over 18 or w/e that then means you have to provide some sort of identification, what happens if that site is hacked? Or bad actors use that information to blackmail you in some fashion.
It's a hard situation and I don't know what the right answer truly is.
The right answer is to treat teenagers like beta testers for adulthood and let them have some autonomy when it comes to these things but only a pedophile would think like this or something.
Still, war games don't make killers, why would 4chan make antisocial loser? Just as an example. I think it's other way around, antisocial losers get exposed to 4chan the most.
This whole "x will fuck you up" thing never made sense to me. If truth makes things stop working then things never worked. It's normal to feel sick from watching a gore video, but there's something wrong with your life if it can "ruin" your life.
The way your parents raise you for first years of your life till you have something that can be called a personality basically defines everything you will do afterwards and blaming anything else just seems stupid to me.