First, I'm new here. Searched for this topic. Didn't find anything and thus, the new thread. Apologies up-front if this thread already exists.
So...I'd say I've been type-watching and learning about MBTI for about 10 years or so and there's two things I've never seen.
1) A child and parent of the same MBTI type
2) Two siblings of the same type
It must be possible as you couldn't avoid it in a family of 15/16+, but how often does that really occur in the world today?
Has any one out there that's fairly experienced with MBTI ever seen either phenomena?