-Old-school dating/relationship trends. Yes yes, I know, sexism, misogyny, etc, but it was kinda nice how incredibly cut and dry things were back then. There was no question of who picks up the check, who's going to work full time, who calls who, who pops the question, who makes the major decisions, etc. Obviously more freedom is great, but having basically no grey area has its perks too.
-Agreed that more children discipline needs to come back, along with more parental responsibility and courtesy. It's gotten to the point now where Alamo Drafthouse is the only movie theater I'll go to, because so many people bring their screaming toddlers into movies (even R rated movies!) and won't take them outside when they get loud that it just becomes ridiculous. Even when I was growing up, I remember that parents would immediately bring their kids out of the theater when they began crying or yelling, please bring that back.
-More push for the Nuclear family. This one shouldn't even really be a "value", studies have shown again and again that kids raised in 2 parent households almost overwhelmingly do better than kids raised in single-parent households.
-Fistfights. It used to be that people who were angry at someone else wouldn't just go get a gun and shoot that person. Why? Because shooting an unarmed person was considered incredibly cowardly, so you would fight that person. Sure you might lose, but at least you stood up for yourself with courage. I'm convinced that this idea dying out is a big reason why school shootings happen so much more frequently (that's my conspiracy theory, at least).