It sounds like you are saying making this change will help good parents be good parents be good parents while bad parents will still be bad parents. I agree.

Your argument about not being responsible for the content your platform hosts is old. If a platform can’t moderate the content it hosts, don’t host it. Most people would even be happy with a reasonable attempt at moderation. I’m not one of those people, I don’t believe companies should profit from an unsafe product, which the prevents safe products from gaining traction as they are more expensive to run.