Does owning a diner/cafe bring in enough profit for everything?? Or would a 2nd job need to be done??

Answer 1

Rarely. You'd need a 2nd job. But you wouldn't have time because owning a place sucks all your life and money away. Insurance, licenses, permits, cost of food going up, power bills going up, things breaking, advertising is expensive, it's virtually impossible for a little indie mom and pop anymore.