Depending where you are in the world, you might be well off going to a class and getting your motorcycle license. Learning how to ride a motorcycle will only make your scooter experience better. After getting your license you are now limited only with your budget on owning a scooter.

The limits for scooters mainly depends on having a license that proves that you can ride a two wheeled vehicle with an engine. (Speed limits are speed limits everywhere: riding 80 mph on a 20 mph school zone will reward you a ticket no matter what vehicle you're in/on :)

Having a windscreen, saddle bags, etc are among hundreds of optional accessories or aftermarket parts. Buying a scooter is only the beginning, modding it to your needs is the journey ;)