Who is the genius who provided us with the magic number 100? Why not go down to 75 or 50? What is it about #'s?
Pitch counts, at least the important ones, have more to do with pitches per inning than pitches per game. For example: 125 pitches in ten innings (12.5 pitches per) is totally different from 125 pitches in 5 innings (25 pitches per). Dads, be more worried about little Johnny learning to "work through it" when he struggles. Working out of a jam is one thing, throwing 40 pitches in an inning is another.
It is interesting that so many people like to toss around the words "old school" and "when I played." For most of us, those are the days of no pitch counts (at any level), the four-man MLB rotation, and before Tommy John surgery was as common as removing tonsils.