When Michael Sheehan spoke at Saint Anselm College in 2016, he asked students to thank their parents for making their college education possible. As his request, graduates of the New Hampshire school stood and cheered their parents. “That was beautiful,” said Sheehan, a top official of The Boston Globe newspaper. “Now maybe mom and dad won’t mind so much when you move back in with them.” The college graduates and their parents laughed. But Sheehan’s words hold much truth. In the United States, lots of young adults are living at home with their parents, according to the Pew Research Center. Pew researchers found that 32 percent of 18-to-34-year-old Americans lived at their parents’ home in 2014. That is the highest percentage nationwide since 1940.