Fwiw, I did games from age 12 to 20 of increasing levels, calling balls and strikes for 7 years, one of the most sought after umpires in the area before entering the white collar workforce. Also worked a tournament at 23 the year I was out if work and living at home. My parents said when I was away for college, former Tiger Heath Murray called asking me to do games. I'd estimate in that time I called somewhere between 300-400 games behind the plate, culminating in summer high school tournaments the last couple years. Probably could have gone down that path if I wanted to, but chose not too. I had the rule book down pat at the time.
Just getting credentials out there...