Boundaries like that don’t work, because, depending on the region, 5mio. could easily be your mom n pop shop or local doctor. Maybe we could tie it to certain tax indicators?

Seen Chinese do (try) the same thing in plitwice national parks. There are only these small wooden paths leading down to the boats. Let’s put it this way: it’s rather unamused when someone two heads smaller than you and half your weight tries to force you into a lake/marshland. What is however amusing is simply stopping to move and watch them loose balance.