The major changes you mention are from 40+ years ago. Social security is only played with when there is a funding problem on the horizon. I don't see what is changing for the better.
Well sure, but you seem to be scoping your statement down to recent events, in America, and only positive change. Before you were addressing any type of change in society as a whole, in the future. I was merely pointing out the vagaries of such over arching statements.
If we are to consider society as a whole, over time, i think things are moving in a positive direction for the liberties of children and the elderly. It's hard to predict what may or may not change in American legislation in the future, but I doubt it will be "nothing".