Another abuse of law. The government has no rights, only authority and power. To construct such laws and enforce them in this manner is an abuse of the authority entrusted to the government.
Alot of laws are an abuse of the authority entrusted to government. Most of them are justified by the rationale that "the state" or "society" has an interest that overrides the individual's judgment of his own interest.
For instance, these children couldn't legally decide to quit school and get jobs. Their parents could be prosecuted for not enforcing education, and employers would be prosecuted for hiring them.