If I had it to do over again, I would have worked in more different places
than I have. I've worked in high volume restaurants and a country club. Never
a dive bar, cruise ship, or nightclub. If you're thinking of owning your own
place, it seems like it would be a good idea to get a wide range of experience
to see how other people do things. In some respects it's not a good idea to
re-invent the wheel; learn from other's mistakes.
Hit the books, and good luck with your dream!