The United States needs an estimated 7 million more homes to house everyone who needs shelter. But to build all those homes, experts say, America would need many more construction workers. “The biggest challenge that the construction industry is facing, to put it tongue in cheek, is that people don’t want their babies to grow up to be construction workers,” said Brian Turmail, vice president of public affairs and strategic initiatives at the Associated General Contractors of America, an industry group that’s been calling for more workforce development. For decades, Turmail said, many educators...