It was late 80s into late 90s for me.
Fa I'm with you, it's only recently I've felt an absolute rage towards my Dad, SM and SD, I've been normalising it for years, because they have, so actually the EA continues long into adulthood. It is hard to relive the memories but I hope for all of us it is positive
My DH had/has wonderful relationships with his parents. He's mainly shocked when I (rarely) talk about my SM and SD, sympathetic of course, but he can't fathom how much it affects me years later, and that is hard to get across without constantly sounding like a sob story!
I'm sorry to hear of the abuse you and your mum suffered/suffer.
I too felt that my dad's home could have been a refuge for me and would have made a huge difference to my life - unforgivable that our SMs stood in the way of that.
Finally and ada so unbelievably cruel to promise that change and let you down again. I am seeing so many common features in everyone else's stories. It's just awful.
Since having DS I've had many sleepless nights remembering and crying, while they have got away scot free... it's not right. I often imagine some kind of confrontation scenario, but I know nothing will change, I can't hope for any loyalty from my dad, he'll just freak out, deny all knowledge and cut me off for a while.
I wish I had the strength to go NC, it would solve so much.