It used to be that young people reaching adulthood could not wait to leave home and be on their own. And their parents longed for an empty nest and quieter lives. In July 2020, 52 percent of young adults resided with one or both of their parents, according to a new Pew Research Center analysis of monthly Census Bureau data. Young people are spoiling their parents’ plans. Many American homes have become very crowded nests. While parents are asking themselves what went wrong, the boomerang kids seem to be adjusting quite nicely. And why shouldn’t they? They’re getting a house without the rent, a laundromat with no slots for coins, and a mini-storage facility, otherwise known as your garage. No one’s doubting that current economic conditions are making it nearly impossible for kids to make it out of the nest for good on the first try. That’s fine. Just remember …