Not me, but my parents moved to be need to us (I'm female).
Scenario was that when I started talking about returning to work (I hadn't planned to, 4m in I realised I needed to) my mum offered that they could come and stay 2 days a week and look after ds.
They lived about 3.5-4h drive away, had lived there all their lives and had other family - siblings and families, not other offspring (my brother also moved away). They were mid-50's at the time, both recently retired.
I said I couldn't ask them to do that, they said I wasn't asking they were offering.
Ds went to a childminder 1 day a week and then they'd come down on Tue late afternoon, stay with us, I'd work Wed & Thu and they'd leave when I got home on Thu.
After about 6m they said they were moving nearer, took about another 6m to sell, find somewhere and move.
They moved to a village about 15mims away, my mum joined lots of things to get to know people - and now 20 years later is quite an integral part of her village.
When I took 15m maternity leave with my 2nd child she joined CAB and did the training and continued to volunteer for quite a few years, as well as having both my kids when I went back to work.
Their relationship with my children is very good, and enjoyed by all of us. As well as the childcare we also spent quite a lot of time together and they helped me through my marriage breakdown and later the illness and death of my 2nd DH.
And now, I am on hand to help them as they age.
My dad initially said they were moving down for 5 years, and then they were going to move back. 5 years later there was no talk of this. They've recently moved within the same village having been in the house they first brought for 20 years.
I'm fairly sure they are both happy that they moved.