Yes, welcome Hopeful! I have 3 DC, 2DS and 1DD. My DD moved with her lovely husband and 4 month old baby to New Zealand almost 6 years ago. Although she was keen to make the move, my DD was adamant that I should be happy for them to disappear to the other side of the world, otherwise she couldn't imagine going. I knew that the life out there would suit them down to the ground, the quality of their work and family life was going to improve and be so much better that I couldn't hesitate but to say "yes of course you must go" but at the same time weeping to myself inside.
My feeling was (and still is) that I have brought up my family and now it is their turn to do the best for their families without any pressure from me. They have settled well out there and now have another daughter, now aged 4 years, who was born out there. They all have NZ citizinship which means should they want to move to Oz and work there, they can.
I am lucky in that I go out to visit usually once every 12 months for 6 weeks. I had to make an emergency dash when DGC No. 2 was born as she had problems at birth which necessitated an emergency op and DD was desperate for "her mum" to be with her and give support. That was tough, being so far away when she needed me so badly.
We talk and/or Skype every week and it doesn't feel quite the 12,000 miles apart that it is. But, it is difficult - as Gally says, a long visit of 6 or 8 weeks makes it all the more harder to say goodbye until the next time.
DD and girls are coming back to the UK for Xmas and are spending 2 weeks with me before meeting up with DSiL down in Oxford to spend time with his parents. I am so looking forward to it, but dreading (already) the inevitable parting.