My 11 year old son is such a thoughtful child. Our 5 year old daughter wanted to learn to ride a two wheel bike. So yesterday, Joe spent over an hour helping her go up and down the sidewalk. He was patient, encouraging, and tireless until she was able to ride by herself. Both my boys learned to ride two wheel bikes when they were 2 1/2. All of my girls have been 5 1/2. My girls are very coordinated, but just couldn't stay upright until the were in kindergarten.