Mutual respect means one person makes a good faith to respect the preferences and culture of another person. And the other person it patient and forgiving of mistakes and assumes good faith from the counter party. Some cultures have different salutations based on age. Even though the US doesn’t make that distinction it is respectful to adopt it.

It isn’t necessary to fire every employee because a dispute is intractable. If an employee makes a good faith effort to adapt but makes innocent mistakes that are very poorly received they may not be at fault.