It seems like years ago in high school the home team wore even numbers not higher than ending with the digit 4, and the visiting team wore odd numbers not ending higher than the digit 5. I suppose it had something to do with the numbers of fingers on each hand. I guess you couldn't ref if your nickname was Nubsy back in the day:..................
I remember in an old yearbook photo before my time, the players wore 11, 22, 33, etc.