In the U.S. assisted living is very expensive. It basically costs the same as an entire monthly income, depending on the facility etc. They provide meals, housekeeping, activities, etc. It is much more expensive than childcare. The only people I know who live in assisted living have pensions, which is rare nowadays. There is assisted living through Medicaid also for people without assets. However, people with some assets they do not qualify so assisted living is not an option, and most adult kids do not have an entire income to spare. Elderly care is extremely expensive. The cheapest option is for the elderly parent to stay in the adult child's home, however there are a variety of factors at play (space, able to get along with others, level of caretaking, etc.).