I think there's a difference between wanting to have one, and always using it. Ry had one for as long as I coudl remember, but it only got used when he was having a lot of trouble, or his arthritis was acting up horribly. He usually just toughed it out. He didn't want to take spots from grannies anymore than they wanted him too. Once he got on o2, he told me he was going to race the grannies and mock them when he won the sot lol.