So you are seeing one aspect of Fi-not the totality of the person's judgments or how they would apply them in whole to a person. Fi stuff is..nonlinear. So I have a value that says to be authentic, but I have a value that says that other people should be given the freedom to be authentic-whatever that is for them. I recall once interviewing with an ESTJ lady who had bleached her teeth to the point of translucency, drove a BMW, and bleached her hair until it was crystalline blond. My gut response was to be taken aback, but almost immediately it was paired with-"She seems to be happy", and "People will be people, humor" and "people have a right to be what they want to be". Fi is messy stuff I figure.
Ummy mentioned short term Fi vs long term Fi-the short term stuff is very liquid-but the long term stuff very deep...I dunno.
I suspect you are very correct-this was noticable strongly when I was quite young-under 20. There was something very odd-I wanted to be appreciated for what I REALLY was, not what I looked like externally. Young ENPs also rebel strongly against authority in our own ways...I very much like the idea that we are fighting with our own JeSi as they are still shadows at that point.
ENTPs are actually easy as they will buy bright new shiny things just because they are new and shiny. "product X can do this task 4X faster and collect a zillion data points in under an hour. Plus it's BIGGER and SHINIER and also, that other entp kid down the block just got one..." My fellow enfps almost feel bad as we totally sold them something they didnt even need at twice the price-but they wanted it cause it was NEW and IMPROVED and SHINY!!!!!....we feel kinda dirty but like getting a paycheck.
INFJs get offended when you obsolete their product and Fe doorslam you (It wasnt my fault Ms INFJ...please dont hate me??? You seemed so nice before....)
ENFPs leave hateful phone messages and emails saying "THIS IS NOT ACCEPTABLE!!!!!! ROAR!!!!", but then totally are chill on the phone convos when you give 'em free shit and justify the new thing as being BETTER (ie helps people) and CHEAPER (ie baby estj).
INTJs only want to buy NEW and IMPROVED shit that is REALLY DAMNED EFFECTIVE (and shiny). INTJs also like to point out inefficiencies in communication at your company which disrupt completion of their plans-in the middle of a presentation with 50 people in attendance (yes Mr INTJ, I know we are a clueless company, please torture me some more about it, thanks! *smiles painfully*)