I'm also wondering where this is coming from. So far I've heard this exclusively from American movies. In Germany this kind of thing does not exist at all and I haven't heard anything like in South-East-Asia where I live since 7 years either.
Here is a study showing the same behavior in Kenya, Malawi, Nepal and the Dominican Republic. I didn't fully read it, but there is argument that such things exist, even if they aren't as prevalent. https://onlinelibrary.wiley.com/doi/pdf/10.1002/ijop.12423