Robots could fill 3.5 million jobs in Japan by 2025, concludes a new Machine Industry Memorial Foundation report. The report says robots have the potential to save $21 billion on health care costs for the elderly by 2025. Robots could help caregivers with children or older people by reading books out loud or helping bathe the elderly, and they also could do some housework. People would be able to focus on more important things, including caregivers, who could gain more than an extra hour a day as a result of such assistance. The robots could range from micro-sized capsules that detect lesions to high-tech vacuum cleaners, but it could take more time before they have a big impact in Japan. "There's the expensive price tag, the functions of the robots still need to improve, and then there are the mindsets of people," says Takao Kobayashi, who worked on the study. "People need to have the will to use the robots."