Breasts aren't indecent. In NY you can be topless. Basically wear what right for the job such as safety gear, but in the end the human body isn't something to be ashamed or scared of, I hope one day people being and wearing or not wearing what they like is the norm.
this is where we get into appropriate clothing for appropriate location. like if i see my coworker on the beach wearing a little man thong, i would shrug cuz its the beach, but when he wears shorts that ride up at work that let me see way too much of his inner thigh, its gross. personally i am for lessening of the sexualization of breasts and think we need to slowly work our way to women being topless in the same situations as men being okay. basically, if its a situation where a man shouldn't be topless, then neither should a women, but if its a situation where you wouldn't loose your shit about seeing a mans breast it shouldn't be a big deal if you see a womans breast. but then i also belong to the school of thought that if you took the taboo out of most nudity it would take a lot of the power from the people who seek to do harm in those areas in general.
The only problems I have is the real possibility of a tit flying out of a shirt and since I'm smaller literally everywhere else shirts usually suffocate my chest. Plus being called plastic or barbie is always a bit annoying, good times, good times.
You can be beautiful even with a big chest wearing something with a big cleavage, although it's harder to make it work. Also you need a special bra.