Why is father's thought so pedantic and hard to change?

Your thinking is clear, but it should be combined with social needs. After so many years of social practice, your father has formed many habitual ideas, especially at work. This traditional concept will not change easily. China now pays attention to academic qualifications, and it will take a long time to gradually pay attention to ability. By the time you want to show your ability, it may be too late. So, I hope you still listen to your father carefully! You are an admirable child who is filial to his parents. Even if you decide, you should do your father's ideological work slowly. I'm sure you can explain it to your father. Wish you success and happiness!