Actually I think the board shorts and rash guards are cute, but some on here would not think those are modest either.
I don't mind wearing a modest bathing suit at the beach where I don't know anyone except my family. What I will not do is wear a bathing suit in front of anyone else (male) that I know. I just think there's a level of familiarity that's too intimate in swimsuits. It's just a personal conviction. At the beach with my family, TRUST ME, no one else is even looking at me or noticing me!!!