Chegg is a double-edged sword that leans heavily toward the 'cheating' side of the blade. While it markets itself as a study aid, it’s often used as a shortcut that stunts intellectual growth.

Combined with a frankly abysmal track record on data security—including an FTC lawsuit—and a subscription model that seems designed to keep charging you long after you're done, it’s hard to recommend. If your teen absolutely needs it for a specific difficult course, treat it like a dangerous power tool: use it only under supervision and turn it off the second the job is done.