My son is 11 and while he can walk leaning on me or my husband, he is mainly on his scooter now (since a fall in March & tight muscles) and a transport chair for quick trips and airports.  It was suggested by his doctors at Columbia Presbyterian this past visit that he get measured for a Quickie 2 Lite for proper seating and so he could propel himself around when not on the scooter.  I believ…