first day with their training wheels off. no big deal. if you're concerned, ride up next to dude and ask about it. they'll figure it out. my two-year old niece likes to ride a direct drive trike and she can't even reach the pedals. BADASS. i'm guessing these guys don't have someone holding them back with a piece of rope, but oh well.
i secretly hope that you confront bumgaspipebike man and find out he rips jamaican one footers after class.