Shortly after my Grandparents married (when they were 17 and 18), they opened a restaurant serving hot lunches and ice cream. They operated it for a few years before deciding to move west and settle in coastal Washington. As hard as it was running their own place, they remembered it fondly.
My Grandpa never worked in food again, but he was responsible for most of the food in their/our household and he relished his role as the neighborhood ice cream man. He always had cones and three or four half-gallon bricks of ice cream waiting for my friends in the freezer. And he made the best scoops. :)