I've got three boys, 8, 6, and 4, and all three love to ride on my KDX200 (though not all at the same time :) ). One kid will be on the PW50 and one kid will be with me on the 200, and we ride all over our yard together. I try to go slow despite my kids' pleading to go fast...they love the rush of the powerband kicking in! And I can't go fast enough for my autistic son; he would ride with me all day!
My wife has even ridden on the back of the bike, and even though she won't admit it, she seemed to like it. Now, if I can just get her to ride a TTR-125LE... :ride: