It’s clear that this is a difficult issue. I think a lot of the controversy here is coming form the wording of the rules.
I think these rules set better standards while being much clearer and simpler to act upon:
These rules make it very clear that depictions of people, real or fictional, below the age of 18 is explicitly banned. They also give admins/mods a little more discretion on ambiguous content. Eg, “aged up” fictional characters that are very clearly depicted as adults (eg, 65 year old Lisa Simpson) can be allowed with these rules.