According to Biography, Cross criticized Germany's education system in a podcast with his younger brother Felix.

Kross said: "The education system needs more support and integration. I think a more personalized teaching model should be implemented, and more attention should be paid to the talent of each student during school.

"Everyone is doing the same thing. For example, everyone must learn musical instruments, but some children cannot even understand the music score. You know very well that they will never work in music-related jobs in their lifetime, but they force them to learn musical instruments for three years. Why can't you spend your time developing areas that he is really good at, has potential or is interested in?

Cross's children are currently studying in American schools and are well adapted. He said: "The American system pays more attention to sports and allocates more time to sports. During school, they will cultivate personal talents."