For example, spending a lot of money and not knowing the price of oil and salt is childish. Simplicity means trusting people easily. For example, the news a few days ago said that a man pretended to be "Gao Fushuai" and cheated many college students. Naive people may think that this society will be rewarded as long as it works hard, and they can't see the dark side of society.
In fact, it is normal for college students to be naive. It doesn't matter. After entering the society, it will naturally change.