As a teacher, my children should be evidence of my career achievement. They should exhibit the characters that I am proud of.
I remember how we used to throw shades at teachers whose children are belligerent. It's important for one's kids yo exhibit the morals one is trying to impact on children of other people.
That's exactly the way I see it. When I was in secondary, a few teachers had their children in the school as students. Whenever a group of students did something wrong, the children of teachers among them received the bigger punishment.
A child should be a reflection of his parents in character.