I think what sexual organs you have is very likely influenced by biology alone. And looks, too - different hormones affect your skin, bone development and so on

I think what sexual organs you have is very likely influenced by biology alone. And looks, too - different hormones affect your skin, bone development and so on. It is of course possible for men to swallow the right hormones and also grow boobs (and also for women to swallow hormones and not grow boobs, I suppose). Some chose to do so, and I have nothing against it. I question if we should make it a standard that people should freely decide if they want to grow boobs or not (I mean they can decide freely now, they are just not usually encouraged to ponder the issue much). I am not saying it would be wrong, just that it isn't obvious to me that it would be a more desirable world to live in. Behaviors are another matter, however, genders have different realities (like the 9 months pregnancy period mothers face for bearing children) which automatically leads to behavior differences. It would be weird if it would not lead to behavioral differences.