My middle daughter (13) and Son (5) are both very interested. They both see mine, try to sit on them, ect. So I when I picked up the early XR75, my daughter claimed it instantly. Over the winter I picked up a late model XR80 for her, and with a little more work, She'll be on it soon. As far as the little guy. those electric balance bikes that Harley bought last year look pretty interesting. Around here, they're cheaper than a used, beat up PW50 and quieter too... and appear to be about the same level of speed. Hmm....