Mostly yes but,

I spent ~2 months traveling in Chongqing in 2023, most of the time without a SIM. You can get into most public wifis with a bit of scanning and mac spoofing. All public transport still accepted cash (or transit card) and was extremely cheap. Even if some shops no longer accept cash, there will always be ones that do. Not planning on going back anytime soon but if I ever do, I would not be a fan of requiring internet to deal with public transport.