if your female character doesn’t look like she has lived the life she leads and you can’t get a sense for her actual personality by looking at her because you’re too focused on making her pretty and perfect and palatable it’s bad character design and you should feel bad
It’s worth noting that, generally speaking – this is why concept artists want to be concept artists. They want to convey feelings, story and inspire the imagination. It’s not uncommon for concept artists to do staggering amounts of research in order to find ways to convey a type of character in a type of time period.
So, if you come across a product created by a major studio where they have extensive executive and production staff – it’s safe to say that any aggressively boring female character designs are done at the behest of a particular type of individual pushing a ridiculous myth to try to seem like a genius.
It is important to call out this kind of absurdity, not just to try to reduce the amount of gratuitous objectification in media – but to also spare these poor artists the indignity of having a guy try to convince them he invented anime tiddy.