My adult(ish) daughter won't wear a bra. She has a large chest and it's definitely noticeable, even wearing big sweaters. I feel people are treating her differently because of this and I've seen the dirty looks she gets. 

How can I bring this up and persuade her that wearing a bra will make a difference? I've tried to make gentle hints, but I wonder if I should just keep to myself. I worry that her self esteem is going to take a hit, what should I do?

- Awkward in Arizona