When I was 21, I lived in NYS and the city I lived in required the PD comish to approve your first gun on your county license. Sounds like bs, well it is/was. He required everyones first pistol to be a revolver, and at least 4".
So my first revolver was a 4" Ruger GP100, which I still have. Learning to shoot the revolver first, made handling semi-autos different but easier to control.