I stopped eating at the kitchen in my office because I just don't like most people there and I really more enjoy my time alone.
Most of my interactions with others in my life was traumatic or negative (I'm 32).
It's very hard to try to talk to people and I don't have any intrinsic needs for that. I went to bars like 12 times with on invite in my entire life, same for restaurant and 10 parties and it sucked or even was horrible and unbearable every single time.
I don't know if I'm just not lucky or I have a psychological condition that make me despise every human interactions.