A ban was passed because people believed and realized that children should not be working at such a young age.
Laozi, also rendered as Lao Tzu and Lao-Tze, was an ancient Chinese philosopher and writer. He is the reputed author of the Tao Te Ching, the founder of philosophical Taoism.
After the president sends it back to the original house of congress they can override with a two-thirds vote