I'm certain by the 1980's, those sanitary panties were long gone, and as for cloth diapers, I think was hit and miss as far as their usage.
My mom did hang onto the old, she was so frugal, and old-fashioned, too, which (I'm sure), helped shape me into who I am today.
Our first two were born when we were still living in our old neighbourhood, and that was cloth diaper central. Tracy, a neighbour that lived next door to us was the only mother out of the bunch using disposables, all the rest of us were diapering our kids the old-fashioned way, and... hanging them out on our clotheslines. That was the early to mid 80's.
By the late 80's and even into the early 90's, old-fashioned cloth diapers were still in service in our home, and I knew of a few other mothers using them, too, at the time, but disposable diaper use was definitely on the rise. I do think more mothers (by the early 90's) were using disposables.
I don't remember when tampons came out either, but I was always a pad girl. No, I didn't enjoy the bulky feeling of old-fashioned pads, but I was comfortable in my own skin using them, so that's what I stuck with. Granny panties and pads went hand-in-hand.
I remember training bras, but don't really even remember wearing one. I blossomed overnight, and that was that. Into grown-up bras I went.