Any youth facility as defined in state of California Health and Safety Code Section 11353.1(e)(2). Youth Facility is further defined to mean any public or private facility that is primarily used to host recreation or social activities for minors, including, but not limited to, private youth membership organizations or clubs, social service teenage club facilities, video arcades where 10 or more video games or game machines or devices are operated, and where minors are legally permitted to conduct business, or similar amusement park facilities. It shall also include a park, playground or recreational area specifically designed to be used by children which has play equipment installed, including public grounds designed for athletic activities such as baseball, softball, soccer, or basketball or any similar facility located on a public or private school grounds, or on City, county or state parks. This definition shall not include any private commercial activity including martial arts, yoga, ballet, music or similar studio of this nature nor shall it include any private athletic training facility or pizza parlor, dentist office or doctor's office primarily serving children.