In fact, we suggest that it is best to apply for a supplementary card for parents' credit cards.
In your case, first of all, there must be a signature on the back of the card, and foreign merchants (such as supermarkets) will check the signature. Look at this. It's serious, but generally they don't check passport information. Of course, if you use it, you'd better sign it on the back, which will be easier. Generally speaking, Lian Bi is the best in signing Chinese, and it is not easy to be imitated. The sign of foreigners is that the more grass, the better. But some places (for example, when we sign a mobile phone contract) will ask for my credit card, which means we will ask whether the name on the check card is the same as the name on your passport. Of course, this situation is rare.