> it's been an absolute nightmare for a tourist to play along.

But the solution to this should be to simplify the tourist experience and to allow payments from foreign banks and cards. Traveling to China has a huge hassle in the late 2010s due to everyone local switching to WeChat/Alipay but it not being available for tourists, but in the last few years (I last visited in 2023), you could use WeChat/Alipay with a non-China bank card.