You need a bigger gym test pool to even form a valid opinion..
From my experience; it really just depends on the gym and the coach. Amateur circuit in Ohio requires 5 amateur fights, with a winning record before turning pro. Some guys get impatient, fighting multiple times in a summer just to be able to turn pro and finally get paid a little something for their hard work. But it's the coaches job to dial them back and tell them when they're ready.
Example one: small gym in Tiffen, Ohio. Elite Sports Academy. The coach was also the promoter. He encouraged his guys to compete, whether they were ready or not to fill up his cards. I remember I brought an old wrestling buddy into the gym to help the guys out one day. The guy had no stand up, no desire to do mma. But the coach went after him, requesting he come in more often and would be given a fight. Stuff like this is what hurts the athletes development.
Example two: large gym in Independence, Ohio. Strongstyle MMA. Multiple coaches for each discipline. You can train with high level bjj guys one day, world class boxing trainers the next. But if you want to compete; specifically in mma, you have to go through extensive training and try-outs to even be considered eligible to train with the team. This is how you sort out the contenders from the pretenders. This is how you separate the guys who want to fight from the ones who simply want to say they worked out at Stipes gym.