well it's a personal choice i suppose. Children wouldlose interest pretty quickly if they were playing with someone who was always faster/stronger/bettr than them. Not a sport but i play scrabble with my daughter. I let her count the points scored in a different way to if i was playing with an equal because i want her to keep playing, getting better so she can eventually beat me without the handicap. She doesn't know she is practicing maths, spelling and vocab, she just knows we are playing together. If she never won, she would no longer play