May I ask what spurred you to create the thread? You're a very intelligent grown man in your 20's who is just about to study for a Master's, yet you seem to care an awful lot about what others are thinking. Despite being an adult capable of making your own decisions, you seem very concerned about your parents opinions (which even extends to which car you end up purchasing?). Your driving instructor maybe the loveliest person in the world for all we know, yet a person who enters into a business agreement with you every time you enter the car basically told you early on that she thought you were nearly a lost cause, despite it being her job to ensure that that wasn't the case, and then contradicting those conversations by claiming that failing a first test would be a killer for your confidence? This all seems to have effected you so much that you wanted a third opinion from a group of people on the internet?
I could be wrong Matt, but it seems like you need more confidence in yourself. I mean, you're an incredibly intelligent person, great statistical mathematician who articulates themselves beautifully and you're well into adulthood. To hell what me, mum, dad, a driving instructor or the pet cat thinks. I refuse to believe that you're incapable of driving a car to test standard, and it seems that all this talking down has already impacted you as your posts read like you're full of doubt, concerns and seem to have already been talked down into getting an automatic license. I accept that's it's harder to pass these days, but I fall down the stairs at least once a fortnight and some wally gave me a driving license!
Tell me to shut up, but I'm willing to bet that you are far more capable at this than you've been led to believe and I find it upsetting to hear some of things you've said. We're all just a bunch of people that you don't know, with different skill sets and experiences to consider. Your parents love you and you should respect them for that, but ultimately it's your life, your license and your decision. Your driving instructor may be friendly, but it's an old fashioned business agreement, not an emotional one, and you are the customer with the choices.