Operation of Motorized Scooters

21221.  Every person operating a motorized scooter upon a highway has all the rights and is subject to all the provisions applicable to the driver of a vehicle by this division, including, but not limited to, provisions concerning driving under the influence of alcoholic beverages or drugs, and by Division 10 (commencing with Section 20000), Division 17 (commencing with Section 40000.1), and Division 18 (commencing with Section 42000), except those provisions which, by their very nature, can have no application.