I am really worried about children on internet.

I teach tution to children in my neighbourhood. They're just 10/11 yrs old and they bring their ipad so that I can teach them from youtube. Yesterday I saw very explicit nude content in their youtube history and I was so shocked and sad at the same time because their email has their real date of birth and still such explicit sexual content was not hidden from their feed.And just now i read about that pedo cult that was run by some indian guy.And i have seen people who claim to be children aged 14/15 on this sub too. I really feel so sad.I wish we could save all these children.I wonder what they will turn out to be.I had access of internet at the age of 16 only and now I look back it really messed up my brain.I really wonder what will happen to these children😓