If the person has met the requirement required their age should not be the deciding factor. The schools should utilize juniors and seniors that meet the qualifications as they did a number of years ago. Many times the more mature driver can and will resolve issues more readily that the younger drivers. I agree the drivers should be certified more frequently than they have in the past, it should be a certification yearly. The gentleman should be commended instead of being critized. My question is why did he not yield?