Well, even an ordinary mind would realize these problems. Also, even small children should have the ability to understand the strange obsession of the eldest inheriting son, if they had seen his response.” (Burkhart)
Given that insular territory, such considerations were conservative.
The eldest inheriting son was only concentrating on keeping up the structure of the feudal lord being at the top of the pyramid. That system was quite cold towards the children and abandons any potential they had.