Yes, thank you for recognising that. It's a result of poverty (as is with several other nations), though you'd be very foolish to imply that nothing is being done about that and that improvement is gradual.<quoted text> Mexico lags way behind in cleanliness standards and several years ago we had a large problem from Mediterranean fruit flies which came from produce imported from Mexico. One of my family members was in both Monterrrey and Leon on business and got sick from the beef in one of those cities. I do not clain to know about Vietnam style insults. I have never been there but know people who are from there. I do not care for them.
It's also very silly to think that the US is the cleanest nation of them all (Grand Canyon national park has TERRIBLE bathrooms! And don't get me started on the squat toilets in Sequoia/Kings Canyon park! The least they could do is get rid of the stench and the smeared poo and toilet paper strewn all over the floor).