Why do we like to use SMS verification code in China? Do foreign countries like to use email authentication?

First, the national conditions are different.

First, the number of people who use the tools is different.

Or for other reasons,

In China, each person has a mobile phone, which is very fast to be verified by SMS, and it does not affect the operation after receiving the verification. However, the mailbox is not so convenient to operate on a general mobile phone, or it is not used much, and there are not necessarily many people who own it. Therefore, SMS verification is generally chosen in China.