You might see a parent timing his or her own 40-yard dash at Freedom Park’s NFL Play 60 installation. Don’t be confused, though: This spot is for Charlotte kids. (How are we not supposed to tackle the dummies, though?) Charlotteans pack the state-of-the-art area on sunny days, hopping between the mock commentator booth and obstacle courses. Play 60 was born of an NFL initiative that challenges kids to play for 60 minutes each day. Here’s the thing: They’ll want to stay for much longer than that.