Yes, there are fast food restaurants in virtually every country you can think of.

no

not at all

Yes, fast-food restaurants are usually clean if you go to the right ones.

well more people seem to go to fast food and then the fast food restaurants expand and take up more land.

Restaurants and fast food chains that provide a list of gluten free foods include Wendy's, Arby's, Mcdonald's and Burger King, among others. You can also sometimes find nutrition facts and gluten free lists on their websites.