I watched a video today:
https://m.youtube.com/watch?v=WWY7A221hwAChina is leapfrogging credit cards to jump directly into the adoption of mobile payments. An oligopoly is in place and as the adoption of the tech rises fast, it's not set to change. Now the Communist government is seeking to control such payments even more and the biggest payment companies are likely to cooperate. Perhaps one day people there would appreciate decentralization but for now the majority of the Chinese seem really careless about p2p tech and payments.
This certainly does not happen because so many people hate using technology so cash still exists. Many people do not have the ability to own smartphone so this will not become a reality.