Can my older children walk along or ride their bike during class?

Safety is our first priority, so we do not allow kids to be out of the stroller during class, except for rising kindergarteners and older (5+) after signing our Big Kid waiver. Big kids must sit during each station, walk between stations (no bikes/scooters/rollerskates/etc), and may not use any of our equipment. They are invited to sing along, read books, or draw.