At what age did you start living independently?

In India there is every chance that children will live with their parents for entire life if not relocated to other city / state due to job or education. What is the average age / stage when a youngster starts living independently in your country? I had read somewhere that the bar is increasing nowadays because of higher living costs/ costly education. Was there such time in Western countries as well when children used to live with the parents like they do here? Did it change after WWI or before that? That’s one of major differences between these two cultures / way of living.