I think a max of 70-75 pitches is plenty for a 14U 8th Grader. Anyone disagree?
What further complicates things is on a 12 player roster for a tournament team, many kids also play premium defensive positions in addition to pitching.
In that case, a kid who is expected to play 3B/SS/CF etc after pitching should probably be limited to 20-25 pitches. Interested in viewpoints of that as well.
I've seen kids play SS or 3B in two games on Saturday, along with pitching an inning or 20-25 pitches on Saturday, and then play SS or 3B the next day along with possibly pitching a few more innings if a team runs out of pitchers. It ends up being a lot of throws overall, even if they are only throwing 20 pitches on Saturday and 30-35 on Sunday.