From what I've researched Nick been training since 12, and he's been wrestling a lot on DEFY so he's seasoned enough for a tv debut of sorts. Plus they are letting him wrestle against Swerve which is someone he's familiar with...I dont see why he has to debut immediately at 18, let him take a few years to do a cycle or two and get some muscle on him and let him wrestle in Japan or some shyt and bring him in when he's more "TV ready"