It is understandable that parents see Taking Children Seriously as being about how to be kinder to the inmates, but actually it is more like correcting the idea that they are criminals.
If you think there is a brunt to be borne that is intolerable, what makes you think that it is OK to have a defenceless child bear the brunt of it?!
There is “discipline” in the sense of intrinsically motivated, wholeheartedly pursuing and working at something that you live for. Then there is “discipline” in the sense of coercive control. These are two totally different things.
Parents often expect a solution to be found from within a small set of parent-approved options, and then they dislike what the child does, and think that that means (more) coercion is necessary.
What if the thing that the child wants to risk is specifically a matter of not being able to easily get out of the situation? What if Jane wants to go pack-packing in the wilderness without a phone or radio? What if she does not want an escape route?
How to handle other parents expecting you to coerce their children when their children are visiting your home.
It may be tempting to try to stop children putting themselves in situations you think might be coercive, like school, but adding coercion is a mistake, and you may be overestimating the potential damage that might be done to a child who has your full support.