Over the course of the 20th century as people started to get wealthier and wealthier, a lot of changes ended up occurring in society. Eating out became far more common, and as a result of the fact that this was the case a lot of restaurants popped up where people could go and get food. Take out places were initially what people ended up focusing on, but with all of that having been said and out of the way it is important to note that sit down restaurants ended up becoming the big money earners in these particular situations.
However, as the 21st century came around, more changes had occurred and continued to occur in this industry. People started to realize that the food they ate was making them sick and also potentially greatly reducing the likelihood that they would truly be able to live as long as they want. The thing is, the desire to be able to eat out didn’t disappear. People still wanted to go out to eat because of the fact that this was a more or less fun thing to do, but they didn’t want to eat the same kinds of foods that had been making them so unhealthy and reducing their lifespans.
This means that health food is starting to become a lot more common in restaurants and the like. People like Jimmy John Liautaud had already introduced the concept of sandwiches eaten in restaurants, but if you want to open a sandwich chain you could very well do so and make healthy sandwiches available as well! This is something that is still pretty new in the market, so if you do it you can earn quite a bit.