Its called Truancy. Many countries require young adults to attend school and complete their compulsory education requirements. In some cases, putting it as the parents' responsibility and holding them legally responsible. If the parent(s) or guardian(s) have shown an effort to get their child to school or the courts have waived their rights, emancipating the teen, that legal responsibility falls upon the student.
Its understandable that some teens who get emancipated or have chosen to have outside responsibilities find it difficult to meet the requirements. This doesn't mean the government should lower the standard of education because of the select few. For those that have chosen to have outside responsibilities or have been thrust into that environment, there are many agencies that offer financial support, housing, and child care for teens and their siblings, who find themselves in situations that would interfere in their schooling.
Tran was warned previously by the courts of what the requirements were. Tran chose not to heed the warning, nor were any steps taken to try to resolve the problem, which is why the charges were filed. Its not surprising to see people getting upset when a student is punished ... but being held responsible for getting their minimum education because they've chosen not to withdraw from school? That seems ridiculous.
What seems to be lost here is the fact that the government was forced to start requiring free education by the vast majority of voters years ago. If people don't like it, they should drop out at the legal age (16 in most states), or vote to have the right to a free, publicly funded education be changed. The states and schools should also not be held accountable for these teens if they choose to give up those rights. McDonald's and Taco Bell needs employees too.