George some poor lazy persons sell their "sexuality" for a car, or a place to sleep or tuition fees.
"Poor lazy person" seems like a rather judgmental choice of words there. And I think the issue is not so much the quid-pro-quo involved, but more whether the "bribe" in question is something that patents would customarily provide with fewer strings attached, or that grown-up children even have a widely-recognized right to. Which would depend a lot on location of course, and applies more to shelter and education than to something like a car or monetary gifts.
George And no, none of them involved something as benign as a chastity belt.
Now I am imagining what would make 23/7 physical restraint look benign. It is not just about not having free reign to have sex, that is quite a common policy whose enforcement has varying degrees of success. It is also about an unyielding piece of metal clamped to the wearer's body all day and night, in a place that is fairly high-maintenance no less, and all the struggles that come with that.
You brought up emotional stressful relationships already, but those may not strictly be an either/or deal - the belt may well be a symptom or even a catalyst for an exhausting parent-child relationship.
George One thing that I think many people question is how so many "children/(young) adults" don't simply run to the authorities. The whole scale of voluntary to involuntary wearing, because it's certainly not a simply binary question.
Then especially family provides for the young not only economic resources, but usually also things like a home, social contacts, education, …
I think what people don't realize that situations are individual and complicated.
That is why I do not necessarily think of anti-abuse resources as the first resort, but knowledge of one's rights and recourses can be a bargaining chip in any discussions about those things.