Who is this mysterious “they” that all have VPUs? Because it’s not HMP. Many prisons run on what we call a “fully integrated regime”. Meaning all, but the extremely vulnerable, are housed together and follow the same regime together regardless of offence. The only common denominator is their category status.
The prison in question here has run in this way for a long time, with a very small number of prisoners on any kind of VP status. If they require a VP unit and it’s appropriate then they’d generally be shipped out to another cat A jail that has a VP wing.
Do you want to share where you’re getting your info from that you can confidently say it’s bollocks that uk prisons often run an integrated regime? I mean, I can go back and tell them LiveLoveLaughWhatever says we’re doing it all wrong if you like? 😅