There is the kindness of ‘please’ and ‘thank you.’ And the kindness of “I was wrong, I’m sorry.” The small kindnesses that smooth our interactions and help other people feel as though you’re aware of them .
Apologizing for slow replies is a symptom of unrealistic demands in an always-on culture. How quickly people answer you is rarely a sign of how much they care about you. It’s usually a reflection of how much they have on their plate.