My 4th grade teacher used the orange track to swat hands and backsides. The worst offender in class was taken to the book room and disciplined. I swear the both liked it. She also brought a refrigerator card board box in and set over him and his desk.
Yes they do. Consider weed. It was well established before being legalized. Legalization brought higher taxes and interference. The black market continues as an alternative to the free one.
There really, truly, isn't. Classical economists can't handle being wrong, but given an alternative reality did not happen, it was a success.
We can speculate and play armchair economist all day. But the hard reality is that the New Deal revitalized the economy and created countless jobs to pull the US out of the Depression. Maybe a "do nothing" approach would've worked too, eventually. When I unlock the secrets to interdimensional travel, I'll let you know.
Armchair economists set up an argumentative scenario where they cannot be wrong. You see, if they're wrong about a situation then secretly they're right, because if you did what they suggested instead it would've worked too (and better!). But if they happen to be right then of course they're right, and countering suggestions are obviously wrong and would've caught the economy on fire.