Except those are just market forces and it is more convenient to use electronic payment. I'm not sure what you mean by China, it's China's government that is forcing all merchants to accept cash [1].
> The People's Bank of China (PBOC) is looking to close the widening digital divide and has warned merchants that they must accept cash or face disciplinary action,...
> The People's Bank of China (PBOC) is looking to close the widening digital divide and has warned merchants that they must accept cash or face disciplinary action,...
[1] https://www.pymnts.com/cash/2020/china-issues-edict-warning-...