Our local market DOES not have expertise to manufacture electronic gadgets or anything complex.
Also japs dont trust many companies with their tech, they manufacture everything in thailand now in their supervision but dont go to china to make parts though chinese parts will cost them 3 times cheaper.
Also, Toyota Japan assisted Ahmed Glass pakistan to make automotive glass via technology transfer AND Toyota Japan assisted AGRI AUTO to make shocks/struts in pakistan.
You should realise that no local manufacturer knew how to make automotive glass or Struts locally so toyota itself invested and empowered these few companies so they can work for them and supply leading to lower cost of car because you are not importing struts and glass.
when you say ''we have aik say barh ker aik'' we only have aik say barh ker aik JUGAARI only. Kaam kertay hoye maut waqaye ho jati hai (nepal).
Let me give you an exampled, the connection between fuel tank to the fuel lid theres this hollow pipe used which is properly coated and once welded with the tank gets any sort of leak checks. Toyota empowered a local manufacturer and that guy started supplying this but one day a new toyota corolla delivered 2 days ago comes in and the customer shouting my car smells like petrol ALL THE TIME. when investigated the dodgy supplier was not coating the pipe properly (dipping it for 12 hours is necessary) he cut those 12 hours to 6 hours so he can produce more pieces resulting in leaks from the joints.
Get it?