The original AD&D is the perfect example.
We played AD&D throughout the entire 80s. Thousands and thousands of hours. We lived it.
I still play RPGs with my adult kids and I broke open my AD&D books to try to start a quick campaign in it just for kicks to show the kids how we used to play, and had the same experience. “Wow, what a kludgy bunch of crap all stapled together!”.
And yes, I showed my kids the polearms list and they laughed.