Quoting is a very common way of writing. It doesn't matter who you quote, as long as it can help the author explain a problem. If you are a junior, it is appropriate to quote comics. But if you write an argumentative essay, it won't work, because the arguments you cite must be correct and realistic, so as to be convincing.

Try to compare and describe dad. "Maruko said that dad always can't understand her, and I often think so." This is appropriate. Another argumentative paper, "Maruko said that dad always can't understand her, which shows that the generation gap exists objectively", which is unacceptable.

You should guide your children correctly. Only you can truly love your children. Maybe the teacher is immature. Maybe the teacher made many mistakes. Don't take teachers as the only criterion.