As bose -x said my instructor was older than me (was 47 at time) and did it because he loved flying he had his CPL etc but ran his own company and instructed because he loved flying. Had to fly with a couple of hours builders for various reasons and they were not as good. (this was only 4 years ago). Finished up doing my skills exam with Freddy Stringer (RIP) who promptly said non of them now what there talking about however passed.