Kids think differently

I have a friend whose parents came from German. He told me couple years ago when I talked with him about teaching my son some Chinese. He said, "You came from China. You have your passion to China. However, your child was born here. He is American. As second generation, we don’t care!" At that time, it was so hard for me to accept what he said. But he was telling the truth about the second generation from immigrant family. How much do our kids really care what's going on in China if they were born and raised in the US? Do they care about the news in China as we do? I know a third generation Chinese American and a third generation Korean American. They both told me all they knew was, "I am American."