Yes, interesting question. Some relevant research: https://www.earth.com/news/kids-benefit-grandmother-healthy/ https://www.earth.com/news/kids-benefit-grandmot

Yes, interesting question. Some relevant research: https://www.earth.com/news/kids-benefit-grandmother-healthy/ https://www.earth.com/news/kids-benefit-grandmother-healthy/ Edit: and https://www.cam.ac.uk/research/news/the-importance-of-grandmothers-in-the-lives-of-their-grandchildren https://www.cam.ac.uk/research/news/the-importance-of-grandm... Edit2: and https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.160069 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.1600...