Interesting topic. Like many here, I couldn't wait to get my license. I had saved up to buy a "real" road bike when I turned 13. It opened up a whole new world for me and my friends. Then we saved for the next 3 years to buy cars for even more freedom.
In contrast, I have 2 young family members that don't have a license, vehicle or any savings to buy a vehicle. They're 17 and 18 and dependent on their parents to drive them everywhere: school, work, dates, etc. With no way to leave their own home, and no nearby friends, they spend most evenings and weekends sitting in their room playing video games.
Recently, one of their friends got a car, and so they have some ability to leave the house without their parent's help, but still no motivation to get a license or save up for a vehicle. They're great kids and I love them dearly, but IMO the lack of a vehicle continues to limit their social development.