No personal experience, but some things Ill add that may be useful to you:
-obviously someone running the business for you won't put in as much effort as you would, because they don't fear the failure as much as you do.
-Opening up a franchise might be a good idea as the brand name brings customers in the door from day one. Otherwise you'll have to build word of mouth pretty quickly
-Many people say a restaurants success or failure comes down to these three things:
Location, Location, Location!
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