To be honest, the reason why the President's family is also a low-class family

Officer in Busan. Can't you accept reality? You're harping on about family background because you can't accept reality.^^
If we follow your logic, President Lee Jae-myung's family is also a family of criminals.
Lee Jae-myung has four criminal records, First Lady Kim Hye-kyung has a criminal record with a 2 million won fine, and his child has a 5 million won fine for habitual gambling. And his nephew is serving a life sentence. It's a complete family of criminals.
And then, because the Busan police officer couldn't accept reality, he started harping on about family background.
PS) Find the person who made me write this post again today.^^ To the "mental invasion technician." If you feel wronged, sue this mental invasion technician.^^ Monk, you should get a criminal record too.^^