My four years younger sister was very unsure of herself taking the MBTI. She couldn't really answer anything about herself except for the "S". This didn't really come as a surprise to me as she's been walking in my footsteps all her life having to make a minimal of choices herself. But I get it must have been hard growing up in my shadow as I was getting all the (albeit negative) attention.
This copycat thing has really bothered me from time to time. When we where younger, in a store for example, she would pick the exact same things as me and wouldn't get anything until she'd seen what I was getting. Always. She idolised me but left me nothing for myself. My parents just told me I was acting stupid when I got upset at times that I didn't get to be my OWN person. They didn't get that (or integrity for that matter) at all.
In her 20s my sister decided to go to the same law school as me (and I of course gladly let her use all my notes and books), but then she also decided to do an exchange program in the same county as me, and switched accomodation to my MY old doorm (my very room) staying with my old friends. Then she even wrote her master thesis within the same narrow field as I - out of all possible legal stuff she could have written about. Then I found her in bed with my exdate after I had unburdened myself crying to her (and her only) about how hard it had been to handle a situation involving him, why I had decided to step away. When I didn't talk to her in two months she didn't even get why. No Asbergers.
I'm not saying my baby sister is a BAD person but she doesn't seem to get "personality", "moral" or right/wrong in an internal sense. When her present (and first at the age of 26) boyfriend tested ISTJ "the dutyfiller" on MBTI it sort of made sense to me that she could be too - although he seems very moral at the other end of the spectre. No matter he seems very good for her, like she is finally finding herself with him. This makes me very happy to see, and I get the feeling that a future potentially huge crisis has been averted.
Needled to say - I'm an ALIEN to my S.T/F.J. family.
In my fathers words, when I was about 11 years old I just "suddenly woke up and had turned *stupid* over night". Stupid of course meant that I was inquisitive and >dangerous< if alowed to talk as I had more factual and logically motivated arguments than a 26 years older man. Oh how I used to envy those families who could actually TALK to each other at dinner...
But I guess spending all that time locked up in my room in total darkness for pissing him of in whatever way (like resembling my mother after they had had a fight, or accidentally dropping some corn on the floor) did serve it's purpose: It gave me the time to develop a strong Ti just to keep some integrity by analysing their behaviour and the context...And of course a killer Ne envisioning all the possible ways for me to get out of there and NEVER ever turning out like them.
Result: ENTP. I'm pretty sure a large percent of us girls might share these types of backgrounds. It would sort of be nice to know even...