Should I prove my feminist opinion or not?

Mariah • I`m a 16 year old loner that likes to sleep, eat, listen to music and play with my cat.
My class was talking about feminism today and I said "Why can guys get away with not shaving but women can't?" and that was twisted into "Why should you shave?" and many girls were talking about how it's important to shave if you're a female. I shave myself but I believe it is your opinion to, only society frowns upon it it is not against the law. I want to let my stubble grow out and wear shorts with my leg hair showing just to piss people off. Good idea or not?