Not a middle kid to early teen stan, or as y'all like to term it preteen... but

Again, I have a concern that if they do get added, they are going to need a lot of animations for every pack in existence. Otherwise we go to Can play basketball -> Cannot play basketball -> Can play basketball.

Infants get a pass as nobody expects them to play basketball, jump into pools from diving platforms, juggle with the soccer ball, play console games etc. Pre-teens would need to be able to do all that (everything that can be done by both children and teenagers).