I have commented on other threads the way in the past much of people's social life was lived on the street.
My DPiL, lived in the same small town/large village all their lives as did generations of their families before them. When we walked to the shops they knew everybody and progress was slow because we stopped to chat to every single person, but only family and one very close friend ever came into the house. Even they would call in just for coffee and never stayed for a meal. Every one knew the rules and, again when we visited we always called inoin family, but I can never remember having a meal with any of them.
As for people's inappropriate behaviour after a death, a close friend was widowed earlier this year. She is only in her early 60s. Within days she was being asked if she was going to sell the family home, 'it will be too big for you now', the car, 'You wont want that estate car now your husband is gone' and one even suggested she might want to move into the retirement flat her 85 year old father had just vacated to go into care!