While there was most definitely South Americans on that journey, having made that flight myself I can honestly say it would have been well over 50% Aussies on their way to NZ, Santiago, Buenos Aires etc.
Certainly but I am not suggesting its entirely on the passengers but the culture of safety in a given region. In the US you have a before flight belt check and sometimes mentions during flight. In a lot of other countries I notice that flights are not as concerned about those belt checks.
