TBH a ventilator is not the be all and end all. I've heard it's extremely hard to be extubated after being on one and the odds of surviving one are not great.
In America, a nurse was crying on social media because they had run out of sedating and pain killing drugs - people on ventilators need to be sedated to keep them comfortable and also to stop them trying to breath on their own because it can damage their lungs.
All of my family have had a conversation and even the younger ones do not rate their chances on a ventilator. If there is a way we can make our wishes known I think we will choose a CPAP only and not consent to be put on a ventilator.
Problems in Harry and Meghan Marriage


