Credit card and ID card should never be lent to others
No matter how good the relationship is. According to my working experience in China Merchants Bank, when you applied, it was clearly written on the back of the contract that the credit card can only be used by yourself. If you lend it to others, you will be fined in 1 yuan and the card will be frozen. Besides, your friend has not paid back the debts from his current school. How can he cherish your credit? If you are really close, he will understand.
personal advice, stick to it.