Matt Yglesias has been fighting a good fight against occupational licensing regimes that mostly serve to restrict entry. He got quite a bit of pushback from commenters pointing out that barbers and hairdressers sometimes work with chemicals and straight razors--which still doesn't explain why all the haircutters who use neither of those things have to go through a barrage of useless tests. (My hairdresser--not a colorist--in New York, took a test that consisted, among other things, of doing finger waves and poodle perms, looks that went out in the 1930s and the 1980s, respectively. This didn't speak to either the safety or the quality of the work he actually did.)
Well, I dare the defenders to tell me why casket sales need to be tightly regulated. You don't even necessarily legally need a casket to get buried in, according to the folks I talked to at the Institute for Justice, which is helping a group of Louisiana monks defend their casket-making business from the predations of industry insiders. The construction of a box is not one of those complicated things that only licensed professionals can master. And even if it were, it's not like the occupant is going to be hurt by a badly-constructed casket.