We worked a lot harder than I thought they were. Guess I'll have to not give him so much flack when he complains that it tires him out. He usually ends up taking care of the lawns after he has lifted weights for football. (Maybe he really is tired.) I don't know, seems like he always has energy to do what he wants to do. Guess we all operate that way.
For a 13 and 15 year old they make a decent wage for caring for 5 yards.