Unions served a purpose back in the day .They for the most part have overstayed their welcome.When they become a behemoth like the teachers union( largest union in the country) they exert a lot of clout,oftentimes,to the benefit of those they represent yet the losers n this are the kids .I find it reprehensible that teachers can walk put sometimes for weeks at a time leaving students in the lurch,all because they want and crease n pay.Nurses aren’t allowed to do this why are teachers? Add to that,I think the tenure aspect lends itself to mediocrity.Again the children are the losers n this situation.