There’s a national conversation about “free” college taking place in statehouses and dining rooms across America. There are many students who want to attend college, but costs get in the way. Currently, only 47 percent of U.S. adults aged 24 to 64 have a college degree. Michigan lags a bit further behind at 45 percent. By comparison, 57 percent of our neighbors in Canada and 51 percent of adults in Japan have a college degree, according to the National Center…