It's the difference between acute issues and chronic issues. The type of "24 hour care" you need for the week or so immediately after an A&E-worthy event is very different from the type of "24 hour care" you need for the next few decades after your condition has stabilised and you need to get on with your life but you remain physically or mentally unable to do so without assistance. Speaking only from my own experience, I've never been in a hospital ward I'd want to spend more than a week in, tops - and even then I'd be looking forward to going home every single day of it.