As the boomers age the need for home health care workers will exceed the supply...

https://www.bls.gov/ooh/healthcare/home-health-aides-and-personal-care-aides.htm

Employment of home health aides and personal care aides is projected to grow 41 percent from 2016 to 2026, much faster than the average for all occupations. As the baby-boom population ages and the elderly population grows, the demand for the services of home health aides and personal care aides will continue to increase.

I would bet there will come a time Rob and his family would really appreciate some immigrant labor...

Japan is already facing a crisis in this respect:

Immigration is very unpopular in Japan because the government favored homogeneity throughout Japan.[49] Homogeneity is, in this case, the same Japanese race throughout the country.[66] Japan has had a history of being isolated from foreigners starting from 1641-1853. Japan only allowed traders from China and Netherlands to enter the Port of Nagasaki on the island of Kyushu.[67]

Citizenship is gained when one of the parents of a child is of Japanese nationality. However, immigration might save their economy due to the low percentage of the working-age population. Opening up more desired, favorable jobs will bring in immigrants who are in the working-age population. This will help better the economy and the elders will be taken care of by the influx of immigrants.