Having children spend time with their grandparents is one of the most important gifts you can give to them (and to the grandparents.)
You're absolutely right. I was born in 1947, the last of four children. I never got to know any of my grandparents because they were all dead by the time I was born. Growing up on a street where many of our friends had their grandparents either living in the same house or next door, I always felt as if I had missed out on a very important part of life because I didn't have any grandparents like the other kids. I'm glad that at least my two sons had the benefit of knowing their grandparents before they passed.
I know. That’s why our daughter spent so much time with both sets of grandparents. She got to see them on good days and bad and got to know them as people not just someone special that blew in from out of town spoiled her and then disappeared. She’s deeply connected to both sets of grandparents. The stories and lessons they taught her are very important to her and to her character.