That's awfully naive. China's cyber units or state actors most likely have access to Wikipedia and are not bothered by the Great Firewall. The citizens on the other hand, I agree with you.
Almost all street markets sell those USB/QRcode to access unrestricted internet.
Most people don't need a VPN as well, similarly to the US population not accessing much of the content from let say Austria, France, Germany... due to language barrier or just not caring at all.