It's a lot easier now than it used to. When I was younger, shops didn't sell
any gluten free products at all, so it all had to be obtained on prescription. And that meant that it all had to be vacuum packed and long life, because of the long timescales involved. So the range was limited, and the stuff was awful.
Now, though, all supermarkets sell gluten free products. It's still expensive - bread is £2+ for a small loaf, and a packet of biscuits is about the same
I can still remember getting my first frozen ready made pizza. It was in 2005
I had to buy it from a specialist website, which sent stuff out by courier in cool boxes packed with ice. And that was the only way of getting such things. Now I can go to the supermarket, and whilst there isn't an amazing choice I can pick up (usually) cheese or pepperoni. Some places do others too, although there isn't as much choice as there is in the normal stuff.
Restaurants are also better at doing GF stuff now. It used to be pretty much limited to salads, because places had no idea what was in things like sauces. It also used to be really common for places to buy in already grated cheese which had been coated in wheat flour to stop it sticking together. But now you can get whole menus of stuff, and places are aware of cross contamination.
I'm not particularly sensitive. Some people can't even use the same toaster as someone with normal bread, because the small amount of crumbs will cause a reaction. I'm also OK with oats, and again they can cause reactions in some people with coeliac disease.