The two people I'm closest two in the entire world are my mother and my best friend, and the three of us are all INFJs. I found that really interesting
Have you found anything like that in your own life?
I'm close to my ENFJ mother, INFJ friend, and ENFP ex-girlfriend in China. Having family of same type would be awesome in some aspects - kudos for you!
I have about 6 closest friends, and only one of them is INFJ. I don't know my family members' MBTI, but I'm pretty sure none of them is INFJ.
If I hung out only with fellow INFJs, I'd have a total of 1 friend.