First, read the English article below.

Every state is a little different, so make sure you know at what age you're legally allowed to quit school. Some states allow students to drop out at 16, while others will not allow you to make that decision until you're 18. Though you can drop out with a legal guardian's consent if you're younger than the established age in some states, other states will not allow you to drop out before the age of 18, even with your guardian's consent. Make sure you know this information before dropping out. You can find your state's legal age requirements here. Even though you're considered a drop-out if you just stop going to school altogether, the action of doing so without consulting the proper legal channels can have legal ramifications for you and your legal guardians.  Simply no longer attending school is referred to as truancy in legal terms. It can lead to fines and community service for you and/or your legal guardians. Becoming truant may stand in your way of receiving a high school equivalency. In some states, you might be allowed to legally leave school early if your legal guardians agree and if you pass a High School equivalency test or get a GED. Make sure to research if your state adopts this policy. Each state and school district has different forms that you and your parents need to fill out. Make sure to consult with the appropriate person at your school to find out which documents need to be filed and when they have to be returned. Be aware that your guidance counselor may try to talk you out of your decision.  Be prepared to offer your reasons for making your decision and be confident in your decision. 

Now, please write a short abstract for it in Vietnamese. Abstract:
Xác định độ tuổi được phép thôi  học. Đừng chỉ nghỉ học một cách đơn giản. Hiểu các quy định về việc kiểm tra sát hạch áp dụng cho các trường hợp thôi học ở nơi bạn sống. Bàn bạc với chuyên viên tư vấn học đường của bạn về những giấy tờ cần thiết.