Do you think it should be allowed for a 17 year old girl to be bra less under her clothes in her own home (only girls live there)?

I am a 17 year old girl and I live with my mother (55) and sister (30).

I have D cup breasts. I've gotten dressed today for a day in and I have opted to walk around my house with no bra under my clothes since nobody is going to see me apart from my mother and sister. I was doing my thing, and my mother turned to me and said, "why don't you put your bra on?"

I turned to her and said, "what?"

She replied with the same question, but more annoyed. My mother has told me a few months ago about how my older sister use to walk around (inside and outside the house) with no bra and it used to look weird because of my sisters (also) large breasts. She used to dislike it.

I've put a bra on now and feel really uncomfortable. It's not like I'm walking around outside braless under my top, I would never do that. I'd be too conscious. It's just, I'm not even allowed to wear it in my own home now. Am I dismissing my mother's feelings?

I don't know. Oh well.