They would like you to become a cardholder as early as possible in order to keep you as a satisfied customer for many years. There are a lot of businesses willing to let you have their credit card, despite your being a student. It's easy to get credit cards. And they can help you develop a healthy financial record if used sparingly and responsibly. Unfortunately, you can also get trapped with huge debt and no way out.
Most college students make considerably less than that amount.
If you don't have a reliable source of income, think long and hard before getting a credit card. If your income is low and you do get a credit card, keep your purchases low so that you can fit your payments into your budget. If, despite the risks, you decide to get a credit card, there are a lot of matters to consider. There are many types of cards, a variety of ways of calculating interest, and other variables. It's enticing to use your credit card and run up a tab you cannot pay.