I've never owned a Poolhall. It seems like a dream...Getting paid and playing pool all day everyday. ...
An owner who plays all day is an owner who goes bankrupt.
The only person I know who got paid to play pool all the time was the manager of a small pool hall. He worked the evening/night shift, and he was usually playing on the front table. I was told that the owner of the place, which was mostly a restaurant near campus, kept the pool part open to irritate his wife. I think I saw the owner in the pool hall only a few times walking through to get something from a storeroom, and I was there a lot -- I lived next door.
You have no experience. Get some experience. Work as the desk man in a pool hall. Learn to maintain the tables and fix the cues. Learn to keep the place clean. Learn how to eliminate the customers who will cause problems. Learn how liquor licenses work, and how beverage distributors work. Learn how to cook hamburgers and the requirements for food service in your area. Learn how to use social media to advertise.
And when you are ready to open, you have to have enough money in the bank to stay open for six months assuming no income from the room.
I almost forgot. Pool halls have no inventory of table time. I've seen more than one guy on the desk who used his pocket instead of the cash register. One in particular worked in a 30-table room that had a custom computer system to keep track of table time. The desk guy, who didn't seem like the tech type, figured out the system and how to get around it. I think the owner eventually checked the receipts for the nights when there was a waiting list and they were more like 75% of full. That's a steep tax.