A Binary World?

I spoke to a few people in the past few days and one common theme came up: “Do we see our world as binary?” Everyone is entitled to his/her own opinions, but let us ponder on the following questions as food for thought.
1) In your circle of people, are there only 2 types: Friends and non-friends? Nothing in between?
2) Do you behave like a completely different person at work vs. at home?
3) When you make a judgement, would it be right or left rather than right or wrong?