I’ve been told many a time that the one thing that is 100% never, ever your fault is someone else’s reaction. We may do things in a way to try and prevent a negative response but in the end, it’s the other person who we can’t control and who will make decisions on their own terms. (sorry if this is lengthy and incoherent but TL;DR: other people’s reactions are not your responsibility nor your fault.) It can be extremely triggering if someone points them out (i’ve had it happen too, as probably all of us here have) especially if they don’t understand or are rude. Bottom line, wear short sleeved shirts and shorts. Other people can have their opinions and judgements but those opinions and judgements are not worth getting heatstroke!