wow... you should have my mother... she made me get my license even though I tended to back into things. and weave dangerously... and drive on the sidewalk... I backed into a trash can during my driving test, lol!
but I think most parents get really freaked out when their kids turn 16 and want to take the car out on their own because driving is pretty much the most dangerous thing 16 year olds are legally allowed to do. and book smarts and driving smarts are two different things... I think your parents are being really really careful because if anything happened to you, they'd never forgive themselves.