Snake Goddess!

This is a figurine of a snake goddess from the Minoan palace at Knossos. It's roughly 3600 years old. Keep it in mind the next time someone tells you that notions of feminine beauty are contingent things dependent on cultural values.

There is, of course, some variation but those variations are variations within a range.

The same is true of sex roles. There is some variation you can play with but there is a range you can't go beyond and that range isn't just a set of cultural fictions that you can ignore. If you're a man you will be a lot happier if you work at being good at being a man and if you're a woman you will be a lot happier if you work at being good at being a woman. If you don't, you'll be miserable. There are no other options.