exercise

Schoolyards are getting as regulated as the U.S. economy. A Colorado school, like many others, recently banned the game of “tag.” When kids run away from each other, they may trip, fall, and hurt themselves. A New York school banned kids from using balls during recess, but not during sports events, because “unstructured play with hardballs” is dangerous, school leaders said.

By the middle of October, if everything stays on schedule, Mexico’s legislators may well prove that they haven’t learned a thing from policies that have been tried and failed, from Denmark to New York City.