Our state takes a somewhat different view of ball-changing and ball boys.
It’s the opinion of our PTB that allowing ball boys to run balls in after every play is good, in that it gives more young kids a chance to feel like a part of the team and keep them interested in playing when they get to high school.
It’s also the opinion of our PTB that changing balls after every play doesn’t affect the competitive balance of the game, and isn’t a hill worth dying on, even if may be a technical violation of the rules.
I personally would rather have the ballboy give the new ball to a wing and let us triangle it in, but they didn’t ask me, so....