If you were at the beach and there was a topless woman, would you say something?
Here, it's legal for women to be topless. However, it's uncommon/I've never seen it.
Last year, my sister was at the beach and there was a topless young 20s girl in a skimpy bottom. Several people had children with them and were taken aback. My sister went up and politely asked her to put a shirt on and she said no, sorry. My sister asked why and she said "what does it matter? if you don't like it, you leave" and put in her iPod.
My sister did end up leaving because her 13 yo was uncomfortable. Would you have said something? What would you have done when she said no?
FTR, we live in Ontario. It's legal for women to be topless but as I said VERY uncommon.