It wasn't that long ago when multiple generations of a family would live together; the children, the parents and the grandparents all under the same roof. I grew up with my grandfather living with us and I have a lot of happy memories of it.
It just makes so much sense to me; it's symbiotic. The grandparents get to do all the fun stuff with the children and watch them grow and develop, the parents get a bit of rest every now and then and recharge their batteries as well as saving money in potential childcare fees, and of course even better is the benefit to the children in so many ways.
Hopefully we will all live together soon as we plan our permanent move to Sweden.