There was a Channel 4 documentary in the early 80s about infantilism which revealed that I was not the only one, but...
It predated any 'expert' notion of the AB versus the DL (and all inbetween) and also presented 'infantilism' as a middle-class phenomenon, revolving around the whole babying thing.
As a working-class lad, while it assured me that I wasn't the only one, it also presented me with an image of whom I wasn't and would rather not be (middle-class).
As a part of that conflict, it also misdirected me along the lines of the supposed infantilist, that this is what is and that you [me] are that.
As if having the given name of Adrian wasn't bad enough
A few years later, as a wandering teen, I found a book for sale on a rotating stand in a train station called, The Sex Life Letters.
I furtively read as much as I could without drawing too much attention, such as, "Oi! Are you going to buy that?" from the newsstand keeper.
It was a bit costly, but I did buy it as there were lots of new and strange things and words within it. I had to fight the urge to read it on the train.
Anyway, once I'd narrowed down all this new stuff to what I was interested in, I was still left with the same info and sense as with the earlier tv documentary (again, it was all from a middle-class perspective, telling middle-class experiences of life and lifestyles which had no mutuality with me and mine).
So, still, I felt very much isolated.
It wasn't until coming online (and you take that phrasing any which way you like
) in 2000 that a whole different world of 'infantilism' was revealed to me (albeit, largely American, naturally) and that enabled a course to be set for self-discovery and maturation (ironic given that the internet is probably now the most childish place outside of classrooms, boardrooms and political halls). It coincided with a [finally!] steady job which itself formed a good part of my personal growth.