I am unsure from what this is from, but I once read a story in which a form of healing magic exists. One requirement for it to work was that the person being healed needs to be OK with it. If someone tried to cure your paralyzed legs and you don’t want them to be “fixed” as you don’t view as an issue or being paralyzed is just part of how you are, then the magic can’t work on you.

Exchange features aren’t in yet. They plan to release it in a 128.x version as it wasn’t ready for today due to technical reasons.