Interesting. Made me realize something.I met most of my closest friends in college.
Changing from high school to college made a huge impact on the type of people I met.
In high school is evident that INTP's are very rare, and S types predominate, I am sure I was the only INTP in high school.
But in college, and this is surely due to the career I chose, the environment was suddenly N predominant (mainly NT) This made a huge difference in the quality of my social life.