My brother has a scooter and he always likes to take me on rides, but I find it scary. 
What type of license does your brother need for his scooter?  It can vary worldwide.
He uses a Class E or Motorcycle only  driver's license. 
His scooter isn't an italian Vespa is it?
No, he has a Wolf brand model scooter! It looks so nice!
Wolf, that's funny they are both animals because Vespa means Wasp in Italian.
That is funny, kinda crazy actually! His Wolf bike is orange and black, it has a very sleek look and is very comfortable, but I just get scared every time I'm on it. 
They are quite popular for personal transport.  They are more affordable, and easier to park and store than cars.
Yes, and much easier for people like my brother to operate. His mental problems prevent him from being able to comfortably operate in a car or truck. 
does he have a standard scooter or a kick scooter?