When I introduced the subject of transgender identity to the class, one of my students told a story about a guy he saw when he was out fishing with a friend one day: they were at the end of a pier, fishing, like you do, when a 60-something year old guy got out of his car in a tiny bikini, walked the length of the pier, & then got back in his car & drove away.
& What the student wanted to know was whether or not that was illegal, specifically because there were children around.
In most cases, I explained, it isn’t, unless of course the bikini didn’t cover everything it was supposed to, in which case he was publicly indecent.
But I also thought: it’s a shame that this student’s first encounter with someone (presumably) trans was so sucky & inappropriate. As the student said, there was no issue with a guy wanting to wear a bikini. He just didn’t feel it was appropriate for the person to parade himself, with no attempt at passing, in front of kids, in such skimpy clothes.
Obviously this guy was within his rights, but still: it makes a lousy first impression, especially the lack of concern about his surroundings. It just comes off as kind of pervy & inappropriate.