The few youth games I've done that have been of a low standard have been an absolute breeze physically. Mainly because the ball was out of play alot more than in OA football. I did an u13 match in October after an OA match as it was on the same ground and there must have been 50 throw ins. Each throw invariably ended up with a sequence of throw ins due to coaches telling the kids to throw it "down the line", which just lead to another throw in and so it was repeated over and over again.
High level youth football, such as academy, is much easier to referee because you have less decisions to make. Low level kids football has alot of bouncing balls which leads to alot more tackles and you get alot more handball decisions to make due to the ball not being on the ground as much