Restaurant Meals Program (RMP)

Recently the government came up with the Restaurants Meals Program where individuals who don’t have a place to store or cook their food can go to different restaurants and eat. In my neighborhood there’s different fast food restaurants including McDonald’s and Sonic which are a part of this program. Fast food has been a big part of society even though the food isn’t necessarily healthy.

Question- Why do people prefer fast food ? Also, how has fast food became a staple food ?