From the perspective of money, in theory, lending any sum of money is risky and has nothing to do with personality.
the first level: the emotional connection between you has reached a deep enough level. Yes: borrow. No: keep watching. A friend, who came back as a soldier, once lent almost all his savings to a comrade-in-arms. I asked him why, and he said that this is the trust between comrades-in-arms. If you are on the battlefield, you can give your life to each other, let alone just money. Should not belong to this category.
On the second floor, you can bear the worst possible situation. You lose this money (the principal 2W+ interest is about 2), which will not have a great impact on your normal life. Yes: borrow. No: no borrowing. To put it simply, the so-called "reaching the best can help the world", and it is also appropriate to help others as much as you can. Even if you lose it, it will not affect your life too much, and you will recognize a person again. The above is "money", but the credit card money is the bank's money, not the subject's money, so it involves "credit" here. Therefore, I personally suggest that you look at the first floor above. If it is, you can borrow it. If not, you can't borrow it directly.