Why do people care about these things so much??

The woman has to orgasm, the guy has to be big down there, yada yada yada….as a female I’ve never cared about any of these “rules”. I don’t like sex that much anyway but when I do have sex it has always been about the person, chemistry and vibes. I also often times get physically tired and exhausted before I orgasm so I stop before reaching that point. But I’ve been told multiple times to “find better” because I didn’t climax or the guy wasn’t “big enough” and it just IRRITATES tf outta me. Sorry for the rant it’s probably not a big deal but I just had to say it lol