It also points out that more teens are in school during the summer. I certainly was, and that was many years ago.
Also, I can't resist griping about this:
> The U.S. unemployment rate fell to 4.3 percent in May, the lowest in 16 years, ...
The article later discloses that the labor force participation rate is now about 63%. And it hasn't recovered at all since 2008. It's just plateaued.