I think they sound like they're trying to be accommodating and that's good. In fact, I'd RATHER take my own food/desserts so I won't get glutened w/ the best and most loving intentions. My incredibly sweet, late MIL bought me a loaf of gluten-free bread but it was disgusting tasting and I felt like I had to eat it because it was expensive and she went so far out of her way to find it. I'd rather bring my own bread!
I ask people never to cook to accommodate me because I don't trust that I won't get glutened! It's just easier... and safer... for me to bring stuff!
Truer words were never spoken! My family are determined to not get this whole thing and it's probably because many of them have it also and choose to stay in denial. I bring a cooler with me whenever I visit family because they will end up making me sick. It's a pain to have to tote food around but it beats the hell out of getting really sick away from home.
I also do not like anyone to buy anything gluten-free for me because we all know that there is really great gluten-free food and really horrible gluten-free food. No different than regular, gluten loaded stuff. They always end up getting something horrible or something that is not even gluten-free....my mother is famous for that because she refuses to read labels. I have found that if you are emotional about food, then being Celiac and trying to lead a normal life will be incredibly hard. Just take care of yourself and yours who need to be gluten-free and ignore everyone who will never understand anyway. I have come to accept after 5 years gluten-free that the vast majority of people on this planet have no idea what is in their food that they eat everyday. It is what it is.