Why do so many elderly people nowadays expect that they should blindly get great respect and reverence no matter how horrible they behave?

How can you make peace with a situation where there was missed communication with your in-laws and it can't be changed?
How does the perception that "everyone lies" influence people's willingness to lie themselves, and are there cultural differences in this belief?
Why is it very common for the partners siblings to keep asking their partner to leave their house, if they go and visit them? They get thrown out.
What are the societal impacts of widespread lying, and how do different ideologies justify or rationalize dishonest behavior?