No, there are lots of things I enjoy doing that don't require having alcohol. In fact I drink more soda, lemonade, and bottle water.
Drinking for me is a social activity in a festive/party atmosphere or even a dinner for two, watching a game at a sports bar...etc
Even then it's not that alcohol is "required" to have fun its enjoyable if you have your favorite cocktails. I know when I'm on a tropical vacation my wife and I will have some frozen cocktails as we lay on the beach because we simply enjoy the flavor of them while relaxing.
Sometimes a ice cold beer with pizza or nachos just tastes good!
I've never been one of those people who (used) or needed alcohol for the purpose of getting some "liquid courage" to get on the dance floor or be more open and personable in group situations.
Taste is more important to me than any "side effect".
I drink if I'm in the mood not to change my mood.