“…These partner effects of relationship quality on SWB within the GP–GC dyads are in line with previous findings in another dyadic study in CLBF (Zhou et al, 2021). Under the vulnerable situation, if grandparents feel close to the grandchildren and confide in them, they might be more likely to provide emotional and physical support to left‐behind grandchildren, which could improve grandchildren's SWB (Lou et al, 2013; Song et al, 2018; Zhao et al, 2016). Meanwhile, grandchildren who have an intimate relationship with grandparents are likely to interact actively with them and take on the role of doing household chores and caring for their grandparents (He & Ye, 2014; Xu & Chi, 2011).…”