If a market maker sells a put and wants to stay delta neutral, they would need to sell shares -- not buy. Selling a put is a long position, not a short.
That's the thing though... with chronic pain there is no end to the physical pain, and this fact alone can be mentally taxing. Sometimes taking your mind off your situation is more effective than painkillers. Chronic pain is a life long mental _and_ physical battle.
In the example given here, how would one answer the following questions:
1. For a given school, return all the students
2. For a given school, return all the classes
In the last data model given (the correct one), the above 2 things can't be done (I think) without doing something funky like enumerating all the Enrollments and finding unique students/classes. In order to modify the data model to provide the needed information, wouldn't you run into the same borrow checker problems?
Most people do not feel the same way. Also, the death penalty does not allow an inmate to choose death over life in prison; this decision is forced upon them.
you are also better off selling your old car yourself instead of taking the dealer's trade-in offer. That doesn't stop a lot of people from doing things the easy way and potentially missing out on hundreds/thousands of dollars.
I don't think the article made an implicit assumption that more leisure is good. The article appears to be using self-reported satisfaction statistics:
"And these young men are happy—or, at least, they self-report higher satisfaction than this age group used to"