There is a lot of blame to go around. The latest "truth" is that it was all the fault of David Crompton, that doesn't sit right with me.
I'm sure we've all seen pathe reels of WHL in the 50's and 60's identical trench coats and hats on every attendant, the odd clacker or whistle, no fences though, they didn't go up until later, when they were needed.
I was a kid in the 80's, I went to games with my dad, quiet ones, Norwich, Ipswich, Colchester, Exeter, always in the seated areas, and we never took the train, despite my dad being a railway man, he knew what happened on the specials, he knew what happened at the big clubs, he wasn't letting me anywhere near that.
Denying the rampant hooliganism of the 80's is no less a lie than the sun's sensationalism. The policing of the time was a product of the society of the time.