Is it wrong that certain sins seems to understandable? Adam and Eve’s sin - I understand it. Who does not want to know what is forbidden for them? I do not understand why this sin is irreversible. Are other sins passed down from generation to generation? Peter denying Christ three times. I would have been scared of being crucified. I do not understand Judas betraying Christ for 30 pieces of silver - greed is not my thing. I also do not understand why the disciples did not think Jesus would resurrect - He walked on water and healed lepers. The Israelites being impatient or upset with God. I just do not understand God most of the time. He wants us to be patient and understand Him. If I keep thinking about it, it sort of drives me nuts. I should be more joyful and grateful. Maybe in the end, we will all day one day understand. No matter how good we are, we are not good enough.
The idea of inheriting punishment is in scripture.
Exodus 346 So the LORD passed before him and proclaimed: The LORD, the LORD, a God gracious and merciful, slow to anger and abounding in love and fidelity,*
7 continuing his love for a thousand generations, and forgiving wickedness, rebellion, and sin; yet not declaring the guilty guiltless, but bringing punishment for their parents’ wickedness on children and children’s children to the third and fourth generation!
I think there is no expectation that everyone will understand God with natural reason. Some people never attain the use of reason. In heaven we may see God with the Beatific Vision.
The Catechism has:412 But why did God not prevent the first man from sinning? St. Leo the Great responds, “Christ’s inexpressible grace gave us blessings better than those the demon’s envy had taken away.” 307 And St. Thomas Aquinas wrote, “There is nothing to prevent human nature’s being raised up to something greater, even after sin; God permits evil in order to draw forth some greater good. Thus St. Paul says, ‘Where sin increased, grace abounded all the more’; and the Exsultet sings, ‘O happy fault,. . . which gained for us so great a Redeemer!’” 308