Yes. That was when basic American values, traditions, mores, attitudes were considered normal and nobody questioned them. It gave children a powerful grounding in security and stability and helped them grow up without a lot of mental confusion and issues.
It is significant that they remained popular and sought out for many years after the last episodes were filmed and they went into syndication. It took a long time for the left to screw up that kind of normal American culture.
It didn't matter when those values were sometimes a bit unrealistic in their perfection. I remember my kids asking me why I couldn't be more like June Cleaver who never ever got mad at her boys. I would just say sorry, they were stuck with me. But I could be more like June Cleaver if they were more like Beaver and Wally. And they understood. Family life generally has more stresses and pressures and conflict than what we usually saw on those shows, but it is okay to show the ideal as something to shoot for too.