What is the purpose of a living will?
Doctors are only allowed to treat you if you agree to be treated. But if you’re unable to give your consent, someone else can do that on your behalf if they’ve been authorized to do so. This may be a relative or caregiver, for instance.
A living will can make decisions easier for them. The idea is that they can make decisions in line with your wishes if you have put down in writing what treatment you want and when treatment should stop.