Global flows of goods and money are pulling people, and Japan’s aging society is pushing the country to rely more on foreign workers. Foreign workers total about 2.57 million, with Vietnam the largest group at roughly 610,000; Japan’s population is shrinking by about 550,000 a year, intensifying the demographic squeeze. The caregiving sector faces a severe shortage, needing about 60,000 new entrants annually; by 2025 foreign caregivers are projected to reach about 146,000, about 5.5% of the total caregiving workforce. Restricting immigration is not realistic; robots and ICT can ease some tasks, but the essential human elements of caregiving—communication and psychological support—cannot be fully replaced. A planned national policy is needed to welcome foreign residents with language education, living support, and workplace stabilization. If caregiving cannot be sustained, hospitalizations and regional medical burdens will rise, and social insurance costs will follow. Salaries for foreign caregivers in Japan are typically around 180,000–220,000 yen per month without qualification; by comparison, in Western countries about 300,000 yen, Korea about 240,000 yen, while Taiwan is around 110,000 yen and Singapore around 60,000–120,000 yen. Beyond wages, visa hurdles (e.g., requiring JLPT N4–N3), high living costs, housing, transportation, and broker fees pose major barriers to attracting talent. The government should reform the cost structure and implement a comprehensive training-and-working system to reduce burden on workers and support integration, learning from Taiwan and Singapore to treat foreigners as neighbors. Such an approach is crucial to sustaining a diverse, resilient caregiving workforce in a aging society.