Answer:
The correct answer to the question: What is the rationale behind having workplace laws that apply only to teens, would be: Teens have higher risks.
Step-by-step explanation:
In general, teenagers tend to be less rational, and more prone to risk taking, than people who are older, and into adulthood. Mostly, it comes from the organic processes and the psychological mindset of the people in this age groups. Because these processes have not yet stabilized, teenagers tend to be much more voluble, and tend to forget limitations. Because of this, companies who hire teenagers, or whose workforce is based on teenagers, as well as governmental institutions, tend to regulate them more than older adults. This is why there are workplace laws that are specific for teenagers.