Sorry I was unclear. There are many cases where shady tour guides force (usually Chinese) tourists to buy expensive souvenirs, sometimes under threat. Examples:
https://www.bbc.com/news/world-asia-34584235, https://www.chinadaily.com.cn/a/202306/07/WS647fd7e6a31033ad3f7bade4.html
I haven't heard about the tourist scams. How do those work?
Sorry I was unclear. There are many cases where shady tour guides force (usually Chinese) tourists to buy expensive souvenirs, sometimes under threat. Examples:
https://www.bbc.com/news/world-asia-34584235, https://www.chinadaily.com.cn/a/202306/07/WS647fd7e6a31033ad3f7bade4.html