@JGoldman10,
You could always get a bicycle (which is cool, inexpensive, and actually good for you).
The advantage of a scooter is that it you don't have to pedal it. I actually don't know the rules for when you need a license. They aren't hard to learn.
A Segway is overpriced and I would consider it impractical given the other options.
A motorcycle would enable you to travel further and faster than a scooter. It would be more expensive than a scooter or bicycle but less expensive than a car. I think a scooter would be fine for scooting around a city, but I wouldn't travel outside of a city on one.
I am planning on going to motorcycle school, maybe this year.