Some chains, including IHOP have recently had to add some fine print to their menus because of additives to their eggs and other menu items, it's mostly for the gluten-free people because the additives (flour based mostly) tend to have gluten.
I don't have any Celiac concerns or reactions myself and don't worry about gluten free. But I do like to be conscious of what is in my food and with a vegetarian background and a vegan son, I try to keep aware of things. Like how McDonald's french fries were not vegetarian for decades. Impossible burger at BK is still cooked on the same grills as the meats. And sadly, for those that have severe reactions to gluten, eating out is just not very safe at all. Even if the food themselves are safe, cross-contamination is still possible.