What I don’t do is eat at other peoples houses, and friends and family are fine with that.
Ive had instances where someone has gone to the trouble of getting me a gluten free pizza - and then, when I’ve asked, it turns out they have cooked it on the same tray a normal pizza has been on, and they have used the same pizza cutter, so obviously, I’ve had to tell them I can’t eat it.
Or they have bought gluten free bread, made me a sandwich but used the same butter and knife for everyone else’s normal bread, used the same knife to cut it, same chopping board and again, I have had to say, I’m so sorry, that will make me so sick, I can’t eat it.
Or they will bring out a plate of biscuits and say “the ones in the middle are gf!” so, you know, I can’t eat those as they are touching the normal ones!
Or they think they have made something meat based and safe, but the stock cubes have barely in and they didn’t realise that was an issue.
I’ve had people get quite offended at first, so now I just explain that it’s hard to get your head around, and I can’t take the risk. I still go out for dinner with people - I just have drinks and don’t eat. It’s okay, everyone gets used to it, and if they don’t, they don’t, I can’t help that.