I am a man and I know very well how boobs work, your point being? Yeah it doesn't work like that, but then what does in games? So, we are going to draw the line at boobs, because some flatchested girls are having a hissy fit about big boobs showing and their white knights are running to their rescue? Should we also exclude girls from fighter classes, because there is no way that a normal woman can carry plate male, a large ass sword, whatever is in her inventory and still hope to do any damage, because we already capped her strength attribute and it's much lower then that of the male counterpart. We should also put a penalty on crafting, because women didn't do that stuff in the old ages, they don't even do it that much in modern times. But no, we draw the line at boobs, because that is obviously going to far.
Well here is the thing, games are not made just for you, nor should they be.
You know so much that you even say that flat chest and a bigger chest works differently on armor. Sorry to disappoint but is basically the same, unless of course there is no space in the upper body armor, like a kinda of catsuit.
What about the guys that want to have a large codpiece? are they gonna to be ignore too. How to I know a character is a male if they have a small codpiece? They are probably all women with flat chest!