I have 12 aunts and uncles on my father's side. Four on my mother's. Over 50 first cousins. Yet I know very little about most of them. When my parents became JWs in 1972, they began to convert some of their siblings. Two of my dad's sisters, two brothers, and one brother on my mom's side. Their children were the only cousins we got to know. And because half of those families were considered "weak" in the faith, we spent precious little time with them. My family just alienated the rest of everyone else.
I'm in the process of trying to connect to my extended family through social media, but it will never be what it could have been. If there was one thing that is a "positive" from my parents' training me to be aloof and distant from those I should be close to, it's the fact that even though I love mom and dad, I am able to deal with not having any contact with them now. It's a little more difficult to deal with not having a relationship with my grown children. But the fact that they are PIMI is on me. I did that.