It is true parting with grandchildren is very difficult for grandparents. Unfortunately it has become a common phenomena in India these days. Grandparents prefer staying in their native village. The villages don't have school and college facilities. They were forced to leave to towns/cities. So grand parents are feeling lonely. If the grandchildren are going to out of country it brings lot of grief.
People we are living in cities at least they have the skype or video calling etc. But villages don't have these facilities.
Many people, more in villages are having this problem.