Go to a third world country in Africa - thats called severe service.
in Pakistan the failure is due to.
1 Our people dont take their cars to proper workshops but like to take it to their cornershop mechanic - who usually has no idea what he's doing with his worn out tools and hammers.
2 Trying to re-engineer the car (remove T stat, lock radiator fan or if electric hot wire it) - it will always result in disaster, shimming the crank bearings with paper thin inserts etc.
3 Cheap thinking in everything (dont argue with me about living conditions, when you buy a machine you cough up its maintenance too - its pricey yes but its the bitter truth) like buying parts or anything including service. Take anyone - they will buy the cheapest replacement part and complain that this car is flop/fail etc. If they had bought an original item and installed it correctly it will function for quite a long time like the original did and it would not be FAIL
The problem is lack of know-how. In Pakistan everyone thinks they are the best in everything - WRONG - leave the jobs to professionals who actually know what to do - but the definition of professional needs to be laid down to them though.