1. The United States attaches great importance to personal credit. For them, credit cards can be compared to the functions of domestic ID cards.

2. In the United States, credit card consumption without password signature is a very safe transaction method. Almost everyone uses this method. On the contrary, password transactions make fraud more likely. The current situation of overseas fraudulent transactions in China shows that a large part of the cases are due to the duplication of credit cards, resulting in fraudulent transactions. Signature transactions are difficult to copy. Needless to say, everyone knows why.

3. If your credit card is lost, it can be frozen directly, which is convenient and fast. Even if someone picks up your card and wants to steal it, the signature cannot be imitated on the spot, so your card will not suffer any loss. Unless this person is a genius and imitates the signature immediately after picking up the card, and can write exactly the same, the probability is very small.

4. The United States is a debt-ridden country, and local people have long been accustomed to it, so the popularity of credit cards is higher.