Final answer:
Italy has a higher percentage of young adults living with their parents, indicating a tendency to live with parents even after reaching adulthood.
Step-by-step explanation:
The relevant country that often lives with parents, still married (1), lives independently with government help (2), and moves backward and forward on the way to constructing an independent adult life (3) is Italy. According to the information provided, Italy has a higher percentage (about 80%) of 15-to-29 year-olds living with their parents. This indicates that young adults in Italy often continue to reside with their parents even after reaching adulthood.