Both are safe. Just find a guy who has either one..
Or get one yourself - never to early to build credit history with a Card. Just don't go bananas with it, keep the credit limit in mind and always make sure you can pay off the card debt the same month (so that no APR applies).
In fact, I almost don't use cash: I get credit score, I get Miles on my card and I never paid any APR or was over the limit. After ~ 6 months of responsible card use, they will start expanding your credit limit.