Should older drivers be banned from using the motorway?

this is an ageist question and should be against the law i am a 62yearold lorry driver who wants to retire but the government want me to drive an 18tonner till i over 65 are you saying i am not capable to drive now or is it an agest thing please remember you have to grow old every day that pes you yourself get older so don't go round giving it the age thing i travel thousands of miles each year stay inmy lorry at night bet you wouldn't do it in all kinds of weather