Is it legal for a 13-year-old to drive a 49cc motor scooter in Kansas?

After reading this link: http://www.kscourts.org/ksag/opinions/2001/2001-039.htm It appears to be saying that every person operating a motorized vehicle is required to have a valid drivers license. It also appears to say that any scooter counts as a motorized vehicle and must be registered to be ridden on KS highways (streets)