Is it valuable to learn about other cultures in the classroom?

I believe it's not valuable to learn about other cultures in the classroom. It is valuable to have knowledge about how people around the world live their lives compared to ours but it's not a necessity. It is more valuable to learn about cultures on your own time because world culture is not something one needs to know. For most jobs, people don't need to know about other cultures, only their own. Therefore, learning about cultures should be hobby that someone should do on their own time instead of being forced to learn about it in school. The movie "Babies" gave insight into other cultures around the world. Although it was interesting to learn about, learning about it will not help me succeed in life. In summation, learning about other cultures is interesting at times but is not necessary to be in the curriculum.