Not necessarily. Yes, to some extend ANY dietary change is difficult particularly if your food preferences run toward that particular food. However, people who have a food intolerance generally have GI tract issues from eating that food, so there are definitely benefits and motivation.
Today, there are lots of gluten-free options, so you don't have to go completely grain or carb free. There are breads, pastas, and cereals made from oats, rice, potato, spelt, and other starches that don't have glutenand even flours made from almonds, cauliflower, and coconut. It just takes some time and effort to get used to different foods and find the "replacement" items you enjoy.