Scooters at Berkeley Skate Park

Hi there, 

   I recently moved to Berkeley with two 12-year-old who are really into riding trick scooters and are used to riding at skateparks next to skateboarders in San Francisco, Marin, and Alameda. We were surprised to learn that the Berkeley skatepark does not officially allow scooters at all. Do you know why this policy exists? Is there any hope of changing or modifying it? If so, what do you recommend as next steps? 

Thank you, 

 Christopher