How common is 18/19? I know Massachusetts has some permit system. In New Hampshire everyone that can get their drivers license does so on the day of their 16th

How common is 18/19? I know Massachusetts has some permit system. In New Hampshire everyone that can get their drivers license does so on the day of their 16th birthday. It's like a rite of passage. There are no learning licenses or permits or anything, but you are allowed to drive with a parent at 15 and a half.