I was diagnosed as being allergic to wheat in 1982. So I've lived the experience of avoiding wheat long before it became trendy to do so.
That having been said: There's no point in avoiding wheat unless you know that there is a good medical reason for doing so. I like being able to breathe and to go to the bathroom like normal people do so I have to avoid wheat. Most people have little idea what's in their food and do not realize the variety of products that wheat appears in. Sure, it means cutting out breads and baked items, but that's only where it starts. It also means cutting out corn bread and rye bread as those grains are ordinarily mixed with wheat-- all pasta-- all pizza--- all pastries--- virtually all cookies--- all crackers and biscuits-- all cakes and anything with a pie shell-- most soups (wheat flour used as a thickener-- Campbell's Tomato Soup lights me up like a Christmas tree for that reason)-- many cereals-- many sauces (soy sauce, for instance) and gravies-- anything battered--- the list goes on and on. In short, if there's any chance that flour has been used as an ingredient in the item, that item is forbidden on a wheat-free diet. Those items are only safe if they specifically say that wheat is not an ingredient or are certified as gluten-free, and you're not going to find those items unless you make an effort to find them and you'll pay a premium for all of them. Wheat is so pervasive in the typical Western diet that a wheat-free diet is significantly more work and more limiting than most people can begin to imagine.
That's not to say I'm not grateful for all those who now avoid wheat for whatever reason because there is now a market for wheat- and gluten- free items that didn't exist before. In 1982 and for many years after, trust me, practically nothing existed and the few products that did tasted bad and looked even worse. (e.g., corn-based pasta. Absolutely horrible.) In the last few years, I've found gluten-free baking mixes that make outstanding pancakes, cookies, and breads. So I can now enjoy things that I've had to avoid for many years.