If you're asking if you can use it to buy alcohol, the answer is a definitive no. Not legally. That doesn't mean someone won't take it, but they'll be breaking the law if they do. But it's worth a shot, it's not like you'll get in trouble or anything.

Edit: I feel like that last part reads sarcastic haha. You are 21, so the worst thing that can happen is they say no, and then you just go to a different place and try. Someone might take it.