Why does it seem like so many series just forgo actually trying to be tapes?

No offense obviously to those who do this, but what made this shift happen? It feels like so much of the stuff I see is kind of anachronistic and has no reason to exist in universe.

Let’s use the example of a police report, why would a police report be on VHS? Maybe a taping of a news story that’s covering the crime, but a word for word reading of a police report? And why would they do this? Why do they put real crime scene photos in it? Who is this for? Why should I feel like I shouldn’t watch this when nothing indicates that anyone should watch it ever?

It kind of ruins the suspension of disbelief, if it’s gonna be a tape make it feel like a tape that was made for someone or some thing that isn’t me. No random police reports are being put to tape and being mishandled and lost. I just need to understand why it’s so common? What series did this and popularized it? I’m so lost.