Question

I have a question…
Throughout the Old Testament, generations are mentioned to have followed God.

But the generations that follow them do not follow God.

How can that be, if the 1st generation follows God, they would have taught their children His ways, and meditated with them. If they had not brought them up and taught them to also honor God and teach their children to do the same, then they were not honoring God. But since it is being said of them that they honored God, it is implied that they have done these things.
And am I not mistaken that if they did these things, Gods blessings would keep flowing, and the subsequent generations would do likewise?