Should classmates give gifts to each other on their birthdays?

Giving gifts to each other is a kind of friendship, which is understandable. However, when giving gifts, we should grasp a certain degree and avoid comparing ourselves for the sake of face, because this will reduce the coefficient of friendship. You are still under the wings of your parents and have no independence. Your financial resources may be a problem. More importantly, if you give your classmate an expensive gift, he may feel very happy for a while, but later he may feel stressed, because he may still consider how to return it to you. If he is not well off, he will feel inferior and depressed. This is not good for the development of friendship between you. Isn't there a saying in China that "courtesy is light and affection is heavy"? It's no problem to give gifts.