What's a double standard that has nothing to do with gender?

It's fine if you don't like cats, but there's something wrong if you don't like dogs.

Getting anywhere from buzzed to completely sloshed is normal, but you need to "lighten up" and "learn to have fun" if you have no interest in drinking (and those are the nice comments).

You're only "eccentric" if you're rich, otherwise you're just weird.