My response when asked about going pro is something I once heard a pro brewer say -
“If you want to make a small fortune in brewing, just start with a large fortune!”
Another comment I heard many years ago when I had the dream of starting my own brewery came from the owner/brewmaster of a brewery in Savannah, GA who I got to know when visiting there. When I told him of my dream to start my own brewery and asked for advice, he said one word.
His reasoning is not just the capital investment but the inordinate amount of time you spend at the brewery doing things other than brewing (book work, continuous cleaning, paying the liquor taxes, maintaining the brewing supplies, hiring and managing employees) . I can go on and on. But I learned how much extra work there was when I did my 6 year pro-brewing gig at Hoppin' Frog in Akron, Ohio. Obviously, you have to follow your dream and I am not trying to discourage you. Just realize that you need to be prepared for the heavy work load. It is not all glamour and the potential for failure is way higher today than it was 10 years ago because of the intense competitiveness in the industry today.
I would suggest first hiring on as a brewer at a local brewery and experiencing this personally to get a feel for this before jumping in with both feet.