Free Tuition Will Bleed Colleges Dry

(Bloomberg Opinion) -- At last week's Democratic primary debate, the issue of free college became a sticking point. Free tuition at state universities has long been one of Vermont Senator Bernie Sanders’s flagship proposals. But critics such as South Bend, Indiana, Mayor Pete Buttigieg say that it’s a giveaway to the rich.In one sense, Buttigieg is right; high-income families tend to pay much more tuition than their low-income counterparts. But most plans for free public college coun