Cars are meant to be driven. I've let co workers drive my cars, cousins, mother in law, and my kids when they were teanagers. My son drove my Plymouth Prowler to his senior prom on the 4rd day I owned it in 2001. My daughter drove it on Hot Rod Power Tour in 2005 and dragged raced in two states when she was 19. I let a 70 year client drive my 500 HP SSR (6 speed) to pick up his wife for lunch. I have no problem with family or friends driving my Camaro - all they need is a driver's license and know that I expect the car back in one piece.
I love having other create memories driving my cars.