Many in the comments suggested that it was because children were no longer being "smacked", "whooped", "disciplined" like they were back then. Below was my posted comment.

Yes, the biblical "spare the rod and spoil the child" approach to discipline and raising. But that does not address the big emotions that are causing a child to act up. That does not address the obedience out of fear which is far different than obedience out of respect. Discipline was not seen as an opportunity for connection (other than physical), growth and an opportunity to help the child understand and become self managing of their big emotions and desires. It did not demonstrate the respect of the parent for the child's emotions and some real need that is being expressed and therefore need to be understood and have parental help working through the child's chaos. It was whoop their azz. An action which approves the use of violence to solve conflicts and the bigger individual usually wins regardless of the rightness or wrongness of the situation. These points I have made are why many people in the 60s and beyond don't know how to self-regulate their emotions and pursue a path of conflict resolution that does not resort to violence as a choice, let alone the first choice. The real difference is that times were much simpler back then. Things were moving at about 10% of the pace they are today. Parents today spend much less time with their parents, are not respected by their parents and and often see their parent disrespect others--prime examples the F! Biden and F! Trump banners that I've seen everywhere over the last several years. And then there's the "do as I say, not as I do" BS that causes a child to legitimately disrespect someone who says one thing and does another. Where is the truth in that? And lastly, They were even talking about how "kids these days" were going to the dogs. And so it has been since the time of Socrates.