You are absolutely right about sometimes setting expectations too high can lead to disappointing encounters, at the end of the day most of us stress over the impressions we make and do we meet their expectations? Although having some expectations like honor, respect and integrity isn't out of line. Letting go of the superficial expectations is certainly freeing and more fun, at the end of the day, nobody is perfect and we are not all going to get along with everyone, being genuine is important for strong social bonds.