moving to 11'. There is such a difference in high level college BB and NBA with regards to height, athleticism compared to HS, recreational that I would leave everyone else at 10'.

Most sports have field changes, goal size changes as you age or simply due to variety; 10' height of BB at middle school and higher should not be set in stone.

When players can touch the top of the backboard, it is silly that they are dunking on 10' hoop height. Reduces 3PFG percentage likely. Gives value back to interior scoring more likely.