Like a lot of people have already stated, your chances of getting in a wreck are high. I drove off into a ditch when I was 16-17. Rear ended a van when I was 19. Luckily for me, this was with a truck, so not much damage. Furthermore, it was a good vehicle to learn on due to the fact it was a V6, 5 speed manual, no TC/VCS/ABS, and it had 4WD, so I had ground clearance and could drive in inclement weather if ever needed to. My dad still has the truck til this day (gotta love the Toyota Tacoma. 130,000 miles on factory clutch
).
Is it sad that to this day, it is still easier for me to predict the truck versus my BRZ? I blame TCS/VSC
TL;DR: Get a beater truck that is a manual and does not have any nannies. Best way to learn IMHO.