Final answer:
In the United States, 52 percent of 18-to-29-year-olds were living with their parents, the highest percentage since 1900.
Step-by-step explanation:
According to a Census from 2011, the percentage of adults who were still living at home with their parents was not specified. However, data from 2016 showed that in the United States, 52 percent of 18-to-29-year-olds were living with their parents, which was the highest percentage since 1900. Among wealthy countries, the percentage of 15-to-29-year-olds living with their parents varied from about 80 percent in Italy to 30 percent in Canada.