Answer: Ethnicity
Explanation:
Ethnicity could be defined as the fact of belonging to a group either being born there or having spent the entire of your time in that particular place. Although the parents and grandparents lived in different places, the difference between them and the Polish culture is an ethnic difference.
His older brother's name is Erik
Answer: Cognitive dissonance
Explanation: this is the conflicting issue of attributes or beliefs and morals basically.