I have never heard of this. I know of a 46-year-old who started training a few years ago to turn his life around and took 3 amateur fights and got stopped three times but the point is he wasn't turned away even though he wanted to try cage fighting out. The entire community was behind that man, and everyone supported him, he did get knocked out badly twice though. It's the same place I took my amateur fights and a lot of the videos are still on Facebook. It is a lot of stuff to sift through though. Proving Grounds MMA, I cannot for the life of me remember the dude's name. I also recall seeing a 51-year-old guy go pro and fight a few times with the King of the Cage promotion. Unless you walked into a gym specifically for kids, I think you could go back and speak with one of instructors and see what is up. If that is their attitude that is pretty odd though, I know a lot of people who started competing in jiu jitsu tournaments in their 30s and 40's who trained for less than a year. I took my first ammy cage fight out of shape, in the wrong weight class, on 3 weeks notice, with a broken toe, a burned foot from cooking in grease the night before, and I hadn't trained in 2 years. I had literally 6 people who either owned gyms or fight teams offer me to come train after my fight. I had just gotten engaged so I had a lot of "happy weight" at the time. lol