Like father, like son. God directly warned Adam (Gen 2:16-17), and he directly disobeyed. God directly warned Cain, and he directly disobeyed. This is a sobering truth. Our children hear what we say but will live what we do. So love God (Deut 6:5) and model the life you are teaching (6:6-9) your children to live.
We all live outside of the garden, in a world marred by sin and filled with death—death of marriages, death of children and worst, eternal death. Our only hope and the hope of the family is that God who is holy is also merciful to repentant guilty sinners. We all have contributed to the demise of the family. The solution is to repent - to yield in faith to God’s institution of family, to seek His grace and mercy to fulfill it, and in faith, to enjoy Him as the Giver of good gifts.