Child Labor Laws apply to all employees who are under 18 years of age. Once a person is 18, they are considered an adult.A person commits an offense if the person employs a child under 14 years of age. However, employers of minors under age 18 must obtain and keep on file proof of the minor's age. Child labor laws cover any employee under 18 years of age. Once someone reaches age 18, they are considered an adult. Businesses can hire minors aged 14 to 18 as long as they follow state and federal laws on working hours, wages, and job restrictions. In the US, it's not legal. Under the FLSA, "forprofit" employers are required to pay employees for their labor. At the end of the plan year (Aug.