They don't, but after sweating in the hot sun doing manual labor as a teenager, I had no issues working hard in college and cruising through BSEE and MSEE with

They don't, but after sweating in the hot sun doing manual labor as a teenager, I had no issues working hard in college and cruising through BSEE and MSEE with A's. I sure as hell did not want to be doing back breaking, manual labor all my life. That is the lesson taught. Also notice in the article, teenage work is positively correlated with family income. Upper middle class parents, in general, don't let their kids laze around.