Where are virtual private networks used in China?
I hope it is clear what this VPN is for. Now let's see where, how, and for what it is used. So, you can't do without a VPN:

In corporate networks. Here, it is necessary to exchange confidential data between employees or network resources of the company and customers. An example of the second case is managing accounts through applications such as Bank client and mobile Bank. VPN is also used to solve technical problems — traffic separation, backup, etc.
In public Wi-Fi networks, for example, in cafes. These networks are open to everyone and the traffic passing through them is very easy to intercept. Owners of open access points do not provide VPN services. The user must take care of the protection of information.
To hide visited web resources, for example, from the boss or system administrator at work.
To share secret information with other people if you don't trust a normal Internet connection.
To access blocked sites.
To maintain anonymity on the Internet.
Providing access to the world wide web via VPN is widely used by Russian Internet providers when connecting subscribers.