Is there a law about buying alcohol on your 21st birthday in California?
The Right Answer is:
The day before your birthday, you are permitted to purchase alcoholic beverages! Most stores, on the other hand, are utterly unaware of this and will wait until your birthday to sell to you. Some liquor stores will not sell to you until the day after your birthday, for fear of being caught selling to minors. Simply go to a pub and the first one will be purchased for you by your friendly bartender!