As the baby boomer generation grows old and if the number of elderly care workers fails to grow with it, many people might end up being cared for by robots. According to the Health and Human Services Department, there will be 72.1 million Americans over the age of 65 by 2030, which is nearly double the number today. According to the Bureau of Labor Statistics, the country will need 70 percent more home aide jobs by 2020, long before that bubble of retirees. But filling those jobs is proving to be difficult because the salaries are low. In many states, in-home aides make an average of $20,820 annually.