The US's problem with healthcare workers isn't because nobody wants to do it, its because of not the great wages for a career that many don't just inherently enjoy doing on top of high educational costs and limited positions for trainees. The not great wages cuts prospective workers, caring for old people in general is not super attractive and cuts potential workers, the limited spots for residency cuts many qualified people who had the drive and intelligence and the money to become healthcare workers, and the high educational costs kills even more potential workers before they even try putting a step into the healthcare industry.
A truthful ad for working in an old folks home in the US would be, "slightly over median wages, but with inflexible and unreliable schedules, rampant industry wide exploitation of workers and their rights, likely multiple ownership changes of your place of business, caring for potentially deranged and violent individuals, high non-refundable monetary investment up-front, no guarantee of residency availability"
A truthful ad for working in an old folks home in the US would be, "slightly over median wages, but with inflexible and unreliable schedules, rampant industry wide exploitation of workers and their rights, likely multiple ownership changes of your place of business, caring for potentially deranged and violent individuals, high non-refundable monetary investment up-front, no guarantee of residency availability"