The economics of hobby businesses, like bookstores and coffee shops and art galleries, are almost always such that you can either feed it the equivalent of a full time salary, or work there every hour it's open yourself, because the kind of business is one that other people want to do for free as a hobby.

This means that, unless you want to be a slave to your own business, you'd better have $50k a year minimum passive income in a cheap town to "give" to the business, plus $100k-$500k to set up the space, plus enough money to live on for yourself, or it's not worth it.

And forget about ever making a profit, even if you do work there every hour it's open.