For better pastures...leaving loved ones behind....Immigrant in USA

For better pastures...leaving loved ones behind....Immigrant in USA....
Thinking about this topic many of these phrases come to my mind . All of them are true in some sense and also not the entire truth behind the issues related to a person leaving his or her native country of origin to settle in a foreign country for better standard of living...
I came to the US about 20 years ago ( early 1992) for the first time.   It was an experience one cannot convey in words.  It was the first time I left my country India, my country of birth, my motherland.  It was also not leaving the country but leaving my parents, siblings , friends and relatives behind...
Well that was 20 years ago and now a lot has changed in my life...and my thinking.
Since my dad passed away a few years ago I have been asking my mother to come and stay with me here in the US but she is totally against the idea.  She tells me that since I left India and went to the US , it should be I who needs to come back to my country of origin and not the other way around meaning she does not need to follow suit since i emigrated out.  My asking her to also settle or at least live for some time in the US means uprooting her from her home and also at such a late age in life as she is in her 70s. But - that means she will be alone over there since I cannot leave this place! I have kids growing up here and going to school and such and they do not want to leave this place i.e. the US which is they country they were born !  See now we have 3 generations with three different perspectives on this !
Apart from the kids being born here there are other family court related issues where divorced parents ( such as myself ) cannot make a solo decision to take children out of the country !
These are complexities of modern life , multi-cultutal life, global citizenship and cross generational issues...
Thoughts ..thoughts..and thoughts....