Why doesn't Mr. Dussel know much about Hanukkah?

He is not Jewish.

He was not raised with the Jewish religion.

His family was afraid of the Nazis.

Jews did not celebrate Hanukkah in Holland.

From the Diary of Anne Frank

He was not raised with the Jewish religion

Explanation:

From the "Diary of Anne Frank " a young girl by the Name Annie kept a daily record of the Franks during the World-War II and also that of the Van Daans. her aim was to chronicle the Nazi threat in the Nazi - occupied part of Holland in which she found herself with Family dynamics.

According to the Diary Mr. Dussel didn't know much about Hanukkah because he was not raised with the Jewish religion. but he was Jewish

He was not raised with the Jewish Religion.