A lot of chicks watch wrestling but don't talk about it publicly. Same thing for comics, video games, anime, etc. Difference is anime and video games have gotten more popular over time while wrestling has gotten less popular(but a lot of people still watch).
As long as you're cool about your interests and don't freak out if somebody clowns it, things go over well anyway. As you get older you stop caring about stuff like peer pressure and being clowned for the stuff you take interest in.
In public, in front of other people a chick will pretend but if you're alone with her she'll sit down and watch it with you. People like to put on a front for other people, plenty of women like watching cartoons alone or with their man but won't admit to it out loud in front of other people in fear of being judged as 'immature'.
It would boring to be an adult who only watched or did 'mature' things.