Fast cars and motorcycle

Someone mentioned there grandmother wanted an mx5 well my grandmother is 70 and grandfather is 72 grandfather has been riding motorcycles since 1962 and still riding today the bike has has at the moment is a Honda fireblade .my grandmother has had different cars since passing her test in 1964 had an e type jaguar.a lotus .a BMW 5 and the 1she drives mow had a couple of years is a Porsche gt3 people tell me its not normal I think it cool