It runs in my family, I don't have it. Gluten free food was pretty rare even ten years ago but it's pretty good now where I am (in the UK). It costs more but not a huge amount more.

Some things that come to mind:

* Ring up restaurants ahead of time and ask if they can cater for you - they often can (Where I am at least).

* Gluten free cakes can be quite bad - they usually taste fine but the lack of gluten makes them fall apart: if you like baking it's worth experimenting with alternatives to gluten.

* Some people assume that it just means you can't have gluten (a la a mild allergy), so emphasis that it is a serious disease ("No more Gran " was what I was told when she was diagnosed (at 70something!))