An employment support professional is working with Carl, a 25-year-old man with an intellectual disability, who rode the city bus once and got lost. Since then, his parents will not allow him to ride the city bus and do not want him riding with strangers on specialized transportation service which provides door-to-door service. His current transportation does not provide rides to work. Carl is his own guardian and wants to receive city bus training but does not want to upset his parents. What is the BEST advocacy for Carl to receive bus training?