Church was a weekly social activity shared by practically the entire community... Not to mention larger events organized by church's, and charity performed in the local community by many churches.
It's unfortunate IMO that there is no non religious equivalent.
Churches also do this in an intergenerational fashion. My office does volunteer work, but my kids and my parents don't take part. That's a hard bit to replicate in other groups even if those groups are actively engaged in charity.
It's unfortunate IMO that there is no non religious equivalent.