Suppose you're a woman who is a college graduate, who grew up in Sierra Leone and then moved to Centerville, Utah, to be near your relatives and start your own African hair-braiding business.
You might guess that there isn't a big market for African hair-braiding in Centerville, Utah. On the other hand, it's not like there's nobody who wants African hair-braiding, and some Utah families have adopted African children, and anyway you don't have to be African or black to like the style.
Anyway, the point is that, if you know how to do African hair-braiding in Centerville, Utah, you can't just advertise on the internet and go to work. See Jacob Goldstein's NYT piece here.
First, you need to get a cosmetology license from Utah's inconveniently named "Barber, Cosmetology/Barber, Esthetics, Electrology and Nail Technology Licensing Board." And to get the license you need a diploma from a cosmetology school that'll cost you about two years of your time and about $16,000 in tuition. And you need to pay a state licensing fee. Or you could ask the board to waive the licensing requirement. But since the board is composed mostly of licensed barbers and cosmetologists (in other words, your prospective competitors), there's a good chance that you're never going to see your first customer.
Gee whiz. Weird or what?