Aita for not wearing a bra

I (14 F) am at brunch wearing a oversized tight nit sweater and I decided not to wear a bra as it doesn’t need one due to the fact it’s not visible and as a feminist I believe it’s an irrational social standard. My dad (37 M) only noticed when outside of brunch and had a huge meltdown about how inappropriate it was and how it made him uncomfortable. Aita??