Yeah that’s a nice idea but so is parents being able to provide food and shelter for their children. However, most counties in the world have social services because we recognize what should happen and what actually happens don’t always overlap and we don’t want to starve kids for their parents failings.

Once you accept some parents either won’t or in many cases can’t, the question is what you value more: the kids in those situations or the companies profiting off the parents failures.

Plus YouTube is an easy example. There are thousands of other websites that have much worse. Making the websites themselves responsible for flagging the domain puts the onus on those most likely to have the technical know how rather than those more likely to be ignorant.