Everyone's approach to education is different. He knows his way is too extreme, and he also knows he's really hurting his wife's feelings by doing this. But he can't help it; some things really require everyone to experience once to understand the hardships involved. It's not something that can be easily wiped away with a few words.
Letting his son prove to his grandparents how capable and smart he is comes with such a huge price. How can he, as a father, bear this? In this life, he's lucky enough to have his son by his side and such a good wife taking care of him, so what is there to be dissatisfied about? Why continue to ruin this happy, blessed life?
"I know every word you say is right. Don't worry, I won't let my son Jin Se suffer like I did. He deserves a happy childhood, so you can feel free to stay by his side. He doesn't need to undergo any more training. If he decides to undertake training himself, we can't interfere with his thoughts!"
