My thirteen year old has become a pretty serious mountain biker. He rides fire roads and single track in Marin County, California mostly on Mt. Tam. He prefers climbing and cross country. He has been riding my old GT Zaskar but is about to upgrade to a Kona Kula. He has been riding with basic pedals with his feet unattached. It surprises me what he can climb with only power on the downstroke. Does anyone have advice on the best pedals? Clipless? Toe Clips? No attachment? My primary issue is safety. A tech at the local bike shop thought clipless was safer that toe clips.