>>He does very well now

Does he really? That's very surprising. In a previous life, coffee shops used to be a big part of my client-base[1]. Out of all the coffee shop owners I knew, I didn't know a single one who wasn't worried about putting food on the table. It's a very cut-throat business with lots of competition, and even if you're located in an expensive area, the margins tend to be razor-thin.

[1]I learned an important lesson from the experience: it is a horrible idea to have clients with little or no disposable income.