My parents moved to New Zealand when I was 22 and my sister 25, my 12 year old bother went with then of course.
For te most part I'm fine with it, it was the best thing for them. But as the years have gone by there have been times wen the distance has been very difficult, on both sides.
For example:
My dads mum passed away and they coul only afford for my dad to come over for the funeral, not all three ad my mum and brother were very upset. She had been u well for a long time and they found it hard being so far away and unable to help care for her.
My mum was quite ill and we could not afford to go over to see her.
When I had my son, their first grandchild, my mum found it very hard being so far away and realising shed only be seeing her grandchild once a year and on Skype. Now I'm having my secod and this time she's saved up so she can be here for the birth which I am really thrilled about.
I had a motorcycle accident and my parents wanted to rush to my side but of course couldn't.
I worry about what will happen if one or both of them pass away, as I don't know how I will afford to go over there.
When they get old, me and my sister will be unable to care for them, it will all fall to my brother.
Ultimately, my brother will end up on the other side of the world to his two sisters, with no family there.
Just make sure you've considered all these things before you go and make sure you have discussed these things with your son.