Why couldn't you ask people to make GF meals for you?
My neice is GF and I frequently make food for her.
This would be a good idea except for the fact that most people who are not aware of food allergies/intolerances do not know how to make food truly gluten free.
I have to bring my own food to my family's houses because, as an example, they will use the same knife to cut regular bread and then turn around to cut something they are planning on feeding me. I've been "glutened" way too many times this way. I can't imagine recovering from having a baby and being sick due to food I've eaten.
I think it's awesome that you make GF food for your niece! I would love to have a relative who understands all the rules of cooking for different diets.