
Just because he gave him education that doesn't mean he's gonna do the bare minimum. Lol, is that something to be proud of? Just because he's doing his responsibility as a parent that should be enough and nurturing them and guiding them is optional? That's a screwed up way to see the world and no wonder every year, a lot of younger people have mental disorders.

It doesn't make it right in the actual Society precisely because the norms are different. But, according to the norms in that period, his behavior was right for a father.
If you are judging with today's standard he was a neglecting father that didn't bother to check the psychological growth of his kid, but I think that if the story is set in that time, we should judge his behavior according to the laws of their time. Idk you get what I mean

Uh no, there's no law that you should neglect your son at that time and your responsibility minimal because you provided them with their basic needs. Being a father isn't a social construct where it changes with time, that's just bullshit. King Henry doted his son but died at an early age is it still not part of their time? A lot of monarchs and nobles prioritize their heir and first son that it can cause favoritism and pretty much children killing each other over that. So no, being a father and neglecting a child is not some social construct that you made it to be. That's just daft.

First of all I haven't been disrespectful in my comments, thanks.
Is it mandatory for everyone to act according to the norms? Normality is only a concept generated when something is commonly done by most of the people in a group. Let me explain it with other words so that you understand. The duke was raised as a good heir and not as a good man. In his present life he is unable to communicate with his wife and son as he would like, but that does not change the fact that he is able to make a perfect job as duke and maintain his social standing. Therefore, the uneasiness he feels in his private life are not a life matter for him since what defined him is his authority as duke. Which is why he is giving the same education to his son so that he will be a competent Duke as well.
The fact that the MC's brother is a good father, man and marquis is a bonus for him, you can count the number of people like him in that period.
Moreover, the reason why male child's were celebrated was exactly because they would have taken the father position while women couldn't inherit anything. And boy were mostly spoiled by their mother since having a boy heir secured the mother's position as the Madame of the household.
I am sorry if the mental health wasn't an issue in that period, people who had mental problem were sent far way from home, married of to some other nobles or killed by their family, so according to those standards, the duke wasn't a bad father
I’m not mad at either side only the fact that the husband is doing everything one sidedly and wanting to raise his own son to be emotionless.