In my experience observing organizational behavior, especially start-ups, what happens at lunch is a key indicator of an org’s health. If people go out, for a walk, and talk about non-work stuff – Congrats.
If they brown-bag it and eat alone at their desks – something is very, very wrong
I remember one “lunch” I had with a creative director – when I arrived to his darkened, barren office, he was in the corner eating a Hot Pocket off a paper plate. No…he didn’t share. Unhealthy in so many ways.