"The worries about a possible move back to India are inefficiencies in daily life - the traffic, long queues at airports, pollution, not enough green spaces, co

"The worries about a possible move back to India are inefficiencies in daily life - the traffic, long queues at airports, pollution, not enough green spaces, comparably worse infrastructure" Yes pretty much this. If you can somehow manage to get past this after living abroad for a few years, India is an amazing place for many things. If you are relatively rich, you will be better off in India if you can learn to live around those inefficiencies.