I know an 8 year old that ran RPO out of a split backs set. This year he’ll run read option RPO out of a split backs set. Won’t always be an active read if the coaches know how the DEs are playing (outside contain, they’ll call the inside handoff from the sidelines... if the DE is crashing, they’ll call the option pitch), but theres also a flat route on the outside to the slot WR with the outside WR as the lead blocker. That’s a presnap read. Looking for green space on that outside CB and leverage for th slot WR to be able to get outside the nickel or OLB (which are essentially the same in youth football).

If a 9 year old can process all that and call the blocking schemes up front, most high school QBs should be able to process it as long as they don’t freak out once the ball is snapped.