Nothing says family to me like talking about each other behind each others backs. It's not a sign of a dysfunctional, toxic extended family. There is still love there. It's just what happens when real world individuals come together to form an unit. And especially when someone tries to bring in someone new into that unit. Still Walking conveys perfectly the feeling of being a guest in a family.
The forced niceties, trying to pretend like you're interested, just anything…