I think the difference is that there are two ways to burn out from the job, or the pressure comes from multiple ways, than other jobs.
This is anecdotal, but my mother in law spent a decade paying home visits to disabled vets. This is not senior care, but you see similar situations of people with special needs and an inability to care for themselves fully. Two things that she emphasized were how she was hugely underpaid for the work she actually did (as opposed to the work she was minimally required to do) and how she needed frequent, long spans filling paperwork to recover from the physical and mental duties. I may be wrong, but you don't often see that with jobs that require exertion on a single front unless it's extremely stressful and salaried accordingly (e.g. surgeon).
This is anecdotal, but my mother in law spent a decade paying home visits to disabled vets. This is not senior care, but you see similar situations of people with special needs and an inability to care for themselves fully. Two things that she emphasized were how she was hugely underpaid for the work she actually did (as opposed to the work she was minimally required to do) and how she needed frequent, long spans filling paperwork to recover from the physical and mental duties. I may be wrong, but you don't often see that with jobs that require exertion on a single front unless it's extremely stressful and salaried accordingly (e.g. surgeon).