Some people may argue that students do not need to study history as a subject in their class. They insist that students should learn more useful subjects than history. However, I have a different idea think differently. I think students should be taught history as a subject in class. The reasons are as follow; 

First of all, studying history can be have a huge effect to on a student’s point of view. In other words, that it can be said they are “learning from past.” While studying history, students can be taught how to make and maintain their view. Let’s assume students are in world history class. They In world history class they may learn about World War 2. During the class, students can get meaning from what they learn. For example, they can be taught that racism - represented by Hitler - and meaningless wars are very harmful to common people in world country. So, we can expect that when students study about why the war they will also learn why it is painful to people, why the racism is bad. It would be very helpful because students are a generation instead of us in future. Are our future

Second, history can encourage a sort of patriotism or loyalty for their community in students. Patriotism and loyalty, as you know, are very important thing nowadays because students in the future they will handle lead the country in the future. If As students study history in a class, they can get will become more 애착 (invested) in their country more than before. For instance, In regional history class, students should hear about the many heroes in their country’s history. The president John MacDonald in Canada is a person as great as who those in on the Canadian bills. During After learning about him in Canadian history class, Many students try to effort to 본받다 (imitate) his leadership and wisdom which overcame many national crises including a World War. 

In conclusion, it is understandable if students could may choose other subjects for their job or score, however, students can should still learn history to make cement their view and be taught to learn from the past also. I think students need to study history as a subject over their classes.

Notes:

1. Only use may if it is a hypothetical.  If you say “may” in the first sentence, you cannot say “they insist”.  You would have to write, “they might insist” or “they could insist”
2. “as a subject in their class” is redundant.  If they are a student, it is assumed the studying would happen in their class, so you don’t need to write it.
3.  “Have a different idea” means something different, not contrary.  If it is contrary, you should say  “I think differently”, or just remove it completely and write, “However, I think students should….”
4. “How to make and maintain their view.”  This sentence sounds very strange.  I understand what you are trying to say, but you would need to write it more like, “students are taught about events which cement their point of view, and help them to defend it.”
5. A common saying is “children are our future.”
6. 애착 means attachment, but in this context, invested makes more sense.
7. Good job!