Comment by NoPicklez
As someone in Australia which I assume is fairly similar, we really don't use VPN's, at the very least the average person doesn't and their use isn't common knowledge. However I have friends in China like you, where VPN's are used by the majority.
We are used to having access to pretty much everything we want access to.
The most popular apps and services used around the world are largely readily available in the US and do not need VPN's to use.
A Tiktok ban is in my memory probably the first time that a major platform used by the masses has been banned for use in the US. Because of the lack of VPN usage by every day people, I'd say everyone will flock to Instagram rather than continuing to try accessing Tiktok. If nobody else you know is using Tiktok, then why use it would be the question.