It's not so much that you can't, but that most people don't and with no driver education and no enforcement of traffic rules, you are stuck in a shitty nash equilibrium. I learnt driving in Canada, and I have tried to continue the same driving habits in India - because that is the only way I feel safe while driving. I simply can not change lanes without checking the rear-view mirrors and a shoulder-check because I am utterly terrified of what could happen if I don't.
At the same time, I am also completely aware about how 99.9% of drivers on the road are operating. So, I have to be cautious that any car could try to nose their way into the road in front of me even when I have right-of-way because that's just how things work here. It is stressful and horrible.