Sure, and it's reasonable for parents to express to twitch that if they don't actively control sexualized content (or provide parental controls), that they will lose the eyes of their child. It's reasonable for advertisers to do the same. Unless your concept of that is control the mouse and keyboard for the child at all moments, what's the issue?

Becomes hard to manage when soft-core porn is allowed to co-mingle with "safe" content without the ability to filter out.