I'm quite sure that if we had the ability to teleport back in time, we'd realize how our memories have deceived us. We'd be pleasantly shocked at how sane society once was.
Let's say it's 1965, and my friends and I are playing football in the local park after closing time. A cop tells us, "You need to go home now boys." Well, we go home and that's it.
Any cop saying that today would have to explain his use of the term "boys", and why he is picking on my group and not on some other group.