Its a hard one to discuss, I would travel up North for shopping and other stuff, there's a looooootttt of places I wouldn't visit with my RoI reg now.
I think a lot of people forget how recent it was, I'm not old( well I don't class myself as old
) but I've been taken off buses as a kid by armed soldiers and our bus checked for bombs underneath, we wouldn't talk out loud really either, given the accents.
Even now (I'm not sure how common this is in the rest of the UK) but it can be intimidating and sorta PTSD-y driving up north and certain areas are marked out by Union Jacks and the kerbsides painted to denote the areas.
Don't get me wrong I've travelled up and loved the North and felt totally safe 90% of the time, but there's still a PTSD-y hangover, and I grew up as it was trailing off.