I started to question this when I was reflecting my childhood memories. Because while I have similar traits with my former self, I am still much different.
As a child, I already was a clear INxx. I was rather reserved and quiet, I never used to run, jump, or make too much noise, I liked reading books( and yes, I learned to read at the age of 4) , playing chess( and yes, I could do that as well) , drawing and playing with LEGO( well, not a real LEGO, it was too expensive in my country, just a cheap Chinese analogue) , when we had guests, they even asked my parents if they really had a child because it was so quiet( and I was too shy to run to the guests). I also was very dreamy, good at learning patterns and applying them( I guess that was the reason I learned to read at the age of 4, started learning English at the same age, and by the age of 5 I could count to 100 without a hitch and could easily add, substract, multiply and divide) , also was very tech savvy for that age. However, if we speak about the last 2 letters, I would question them, because at my childhood I have shown both T and F, P and J signs. When I went to school, I was what they call a child - prodigy. I was good at literally every class. At the 1st grade I already knew what they learned at 3rd grade, I easily did all the math sums, I already could read while others were only learning, I also was one of the best drawers in class( ironcally, my handwriting was terrible though) , I was also best at English( I guess it' s no wonder becuase I started it at the age of 4) , I was also good at acting even though I got only minor roles( among my classmates I was unfortunate enough to be the unfavourite for the class master) , I was the one who got least complaints about their acting during the play repetitions. To me the scene was like a field of self - expression. I even use the acting skill I aquired in my childhood now to fake emotions when I need to lie to get something I need( at least, I wasn' t accused in being false even once when acting/ lying) . As you see, I was good at math & logic, which indicates a T personality, but I also was good at acting and drawing, which are mostly F traits. I also had shown both T and F traits in other aspects of life. I had already shown the signs of manipulativeness, and though I didn' t fully understand what I was doing, I already knew what to do to make my parents give me sweets. Also, like I said, I was the unfavourite for my teacher( at that time I didn' t know this, but now I realise) . Most kids were ESxx, and I guess she thought it would' ve been better if I was the same instead of being the " white raven" of the class. Besides, in my earlier childhood I didn' t attend kindergarden very often because of weak health, which led to me being naive, socially unaccustomed, overly sensitive, righteous and helpful( which are F traits. I liked helping people a lot. I also thought people like when they are being helped. It revealed that in huge doses it gives the reverse effect and people start to dislike you . So, when I went to school these two features combined made me the teacher' s unfavourite. I remember that in the 1st grade every week the one who had more good marks was awarded with a Mickey Mouse sticker. So, if I had equal results with someone else, she always gave the sticker to another person, so in order to get it, I had to be even better than others. Also, when I argued with other kids, it was not uncommon for her to side with them and yell at me in front of all the class. In these cases, since I was bad at controlling emotions at that time, I often cried. However, it always wasn' t like that. At first I felt guilty to think that my teacher was doing this to me, but harder she was on me, the more my guilt passed and I came to realise that I was right. Even my ISTJ mother, who usually respects people who have more authority, and with whom we don' t agree often, supported me in this. I started to avoid my classmates and teacher on breaks in order to reduce the conflict. I also didn' t approve my schoolwork if it was less than perfect( that' s when I got the perfectionist trait) , because I knew my class master would find even the most minor detail in order to lowen my marks. This lasted for 3 years until in the 4th grade our class master has changed. The new teacher was much nicer to me, she taught me a lot, and it was she who gave me faith in my abilities. I can say the 4th grade was one of the best years I spent in school. Unfortunately, in the 5th grade she left and took a younger class. Also, like many teenagers, I started to have a teenage crisis, and also some things in my life influenced me deeply( I can' t say which, it' s too personal) . Why am I saying this? Because these are events that influenced me.
Now all my problems are gone, I got rid of the chaince society put me into, I have learned that I must not let others abuse me, and that I must never let myself be a victim. I have become more assertive and if I' m hurt, I won' t hesitate to protect myself. I know that morality is relative, and I don' t have to follow the rules of society. Instead I made my own morality code, and I have my own understanding of things. I learned to pursue my own goals no matter what, to stand up for myself and what I believe in. Sometimes I' m even grateful for those challenges life brought upon me, because they made me who I am now. But, let' s get back to the topic. When I compare my current self with my former self, I see that my former self was much more F. However, I' m pretty sure that I am a T by nature, since my primary instrument of world perception was thinking. Feeling is secondary. When I see something, I always have thoughts about it, but I do not always have feelings about it. It' s difficult to impress me, but if one succeeds in it, the feeling of being impressed will be overwhelming inside my mind, even though I may not always show it. I am a clear T, I don' t let feelings take control of me, and I' m totally comfortable with this kind of mindset. No one enforced this personality on me, I am who I am. So, what I' m trying to ask is that can one' s MBTI type change through life? Or maybe it is natural for children to be feelier and more emotional than adults?