One glaring inconsistency with the 'scale' argument: substitutions. Have you ever met youth leave (competitive or otherwise) that didn't allow free substitution

One glaring inconsistency with the 'scale' argument: substitutions. Have you ever met youth leave (competitive or otherwise) that didn't allow free substitution? Hell, do you think that in their quintessential (and cliche) example - the street/field/dirt of a developing country - they wouldn't sub out to let others play? The reason this frustrates me so much is that it encourages diving. If you are tripped, step on the group poorly, lose your breath, get the wind knocked out of you, etc., it behooves you to dive and try to convince the ref to stop the game (often convincing the other team to kick the ball out). While you wouldn't be able to sub immediately either, players try to make their injuries seem more severe to get more recovery time, knowing they'll have to perform in full form when they get up. Open substitution would make it so the players would have to accurately convey to their coaches whether or not they should be substituted. Feigned injury severity would result in miscues as to strategic advantage by substitution.