California getting caught with weed under the age of 21 and you lose your drivers license for a year unless you take a drug diversion class. When I was 18 I got rolled up on by a cop in Ventura county and thought I was just getting the ticket. He just wrote me the ticket and to keep my license (because of age) I had to do the program and probation with tests. I wasn't even driving at the time. 3 hour tea got me through the tests but it cost me a bunch of money for the classes.