I may be being unreasonable and I’m just old and out of touch… took my kids swimming today at our local public pool and there was a lady wearing one of those swimming costumes that is basically a thong at the back? I saw lots of them in the beach during the summer which I kind of understand as it helps you get a very high cut tan/eliminates tan lines but I felt a bit weird seeing one in an indoor pool? Not sure where boundaries lie…? Happy to be told IABU but wondered what others think?