This becomes even more likely with internet communities, etc. I met my wife online, and our hometowns are 1200 miles apart. It's impossible to live less than an 8 hour drive from both our families. We lived near mine for 4 or 5 years after getting married, now near hers for about 10. It's hard to feel close to both, and have that support network.
I’m from NW England. Wife is from Cornwall - 6 hour drive away. We met at uni, 2 hours for her, 4 for me.
Then my parents moved to Greece, we moved to London for career and bounced around the south east.
Eventually though we settled in Cheshire, and the parents followed - one is a 10 minute walk away, the other is 20 minute drive. It’s amazing what having grandchildren does.
Trouble is we’d feel guilty about moving to New Zealand now.