Because I was a stupid kid and didn’t realize that watching combat footage might be a bad idea. I thought I was just learning about military history. Same way kids don’t realize they’re being groomed or don’t realize that watching graphic horror movies might be a bad idea. Kids are dumb - and to be clear, I know you can’t shield them from everything and parents are still the primary solution. Still, a local flag for age range seems like exactly the sort of tool that would help a parent to moderate access without limitting privacy or freedom.