That is because the local cars being produced do not have to follow a safety standard or even competition, They will make the most low cost product they can - hence such items like airbags etc can get kicked out.
In other countries where you see these items as common have a giant "DANDA" of which every manufacturer, repairsman, user is scared of. Then you have competition which gives you more of such features, in Pakistan all the manufacturers are tied together to keep the supply short - they do this to make more money with the least possible expense, and in Pakistan they can get away with such scams as "own aka premium" money - hence they get to play with you and you the consumer who does not say anything even if kicked or treated like prisoners by them. - In Pakistan there is no such danda as I mentioned.
btw - I have been inside a car which suffered huge damage, the airbag is not a luxury pillow situation, it blows hard and extremely hot and happens in less than a blink of an eye. It smacks you as you are thrown forward, the car I was in had seatbelt pretensioners too, when they detonate - you are pulled extremely super tight into the seat just a few microseconds before the airbag blows - It also helps to anchor the seat to the floor so you are in the most perfect position to be protected, Its quite a painful experience. But the trade off is that you dont hit your head on the steering or tear or sprain your neck or shoulder muscles and hence also protect bones.
These safety features are designed keeping road sensible speed limits as "control" and that the user of such a vehicle sane enough not to drive his car at 200 km/h into a lead filled concrete wall, The G-forces alone will rip up your internal organs.