As a parent of a young child, you're completely delusional if you think parents are in complete control of every person that a child comes into contact with.

Just at my kids school there are probably 250 staff members including teachers and administrative staff who come into contact with the kids on a daily basis. I have zero influence on that!

This doesn't even touch on mass media in the internet which have a huge impact on not just children, but people like yourself. You yourself are interacting with people on the internet whom you know nothing about.