My point exactly - I'm just under 40 now, and grew up with CIGs and VEPs on the central division in the 90s/early 2000s, but for anyone in much of the rest of the country they'd already gone by then - plus I'm from a railway family and so would have used the trains a lot more as a kid than most people my age.
Last VEP was withdrawn in 2005 - there were two CIGs lasted to 2010, but they were confined to the Lymington branch.