This isn't concrete evidence but I feel like a lot of craft breweries made one or two good beers as a homebrewer and somehow knew people or had established money to start up a craft brewery. Since I do like checking out craft breweries and most have literally 1-2 good beers and the rest mid to poor (the bigger the draft list generally more likely all are poor). A lot of these breweries get bailed out by good locations or recently providing spaces to let the adults booze + "Watch the kids".
I like to homebrew and so I'm aware of the process and have some idea of the costs since there was a moment I thought about it before I realized how much money I'd have to find (not happening) and how much I dreaded the business side of it. It's much more fun to just give people beer and see them enjoy it.
Good to know I had a feeling this had to be the case. It's always the first thing I notice, since it's so obvious.