I recently decided that I'm only going to try to improve my appearance if it's for myself. I brush my hair because I like having nice-looking hair. Shaving my underarms, I do because I don't like the feeling of long hair, and it feels unhygienic (it's equally unhygienic for guys to have long underarm hair but it's not for me to expect them to shave). But I used to shave my legs because I felt like it was expected of me; it didn't make me feel 'prettier' or 'more feminine', it's nothing to do with hygiene, and I hated that I felt I had to waste time on it. So I've stopped doing it.