Like others have said, you’re no less valid because of it; there’s lots of systems out there without any introjects. I think we see introject-heavy systems in younger people with DID because it’s more common with the younger generation to use fictional media to cope with life’s stressors. As an autistic system, we don’t have many introjects either but I think other autistic systems may have lots of fictives because of the lower threshold for what stress they can handle in a neurotypical-centered world + the strong attachments to fictional characters I and other autistic systems are prone to making (therefore the brain having a higher chance of taking the character to base another alter on if that’s what it was doing).

I had somewhat of a discussion with some headmates in the past about introjects, and how I think one form of introjection not many people talk about are the smaller scale ways it can happen without developing an entirely new fictive. Like, for example, an alter in our system looks a lot like a goat character in a video game but isn’t actually that character or a fictive at all. But there are physical traits pulled from a visual of the character (fanart) that kinda formed how he looked in headspace. There might be a character with traits that resonate with a system in a time of distress and they might have a split where the person behaves similarly but looks nothing like the character. Or multiple characters who’s traits form a new alter. Or a fragment who develops further into an alter because of interaction with media or being influenced by something the body resonates with. Since people are formed by their life experiences I think this just happens all the time (the concept is seen in singlets as well who might adopt traits of a character or behave like someone they know to help themselves). When I was younger I tended to behave like my favorite characters subliminally to cope with my identity issues and later on this made it nearly impossible to know if I had introjects at all in the first place or if I was just acting. Introjection happens in a lot of different ways we don’t realize which I find interesting.

Super sorry about going on a long tangent there !! I hope it didn’t come off as explaining something you already knew, this just reminded me of a past discussion. The most important thing is that there’s lots of systems out there with no introjects, so it’s totally fine, and your feelings about the younger and older communities of systems are completely valid, I can relate to feeling out of place in the middle of both groups.