I feel like it’s just capitalism doing a capitalism. People are self-conscious about their skin, so you can sell them all kinds of crap.
Even a basic washcloth does a decent job with exfoliating, if you use it regularly. Rub your face dry with a scruffy towel, if you need more than that.

But of course, there’s hardly any money to be made with reasonably priced products, so you won’t see TV ads for them.