For me eating out is a concern because I don't like to get sick and in pain for weeks on end. Limited choices is a minor thing. I already have limited choices in the foods I can eat anyway, so no biggie. Most restaraunts that have gluten free menus at least have a good idea of what is required for gluten-free eating. But soy-free, dairy-free, nightshade free is another story. Soy is commonly used and so are nightshades and dairy. The food industry is a mine field for people with food sensitivities. Even gluten free processed foods are often made with soy ingredients.
By limited choices i meant that restaurants don't have a lot of gluten free food to offer. Sorry if it was convoluted. Restaurants are starting to have req'd training in gluten allergies, which is smart because 21 million people accounts for significant missed profit opportunities. Their loss. Anyway, I completely agree with the fact that restaurants need to be more conscious of food allergens. 150 million people in the U.S. have some form of chronic illness that will restrict their diet.