you have obviously never negotiated a contract with an employer. If you think that you could go to your boss and negotiate work terms and rules with them, you are sadly mistaken and not very well informed. He would eat you up and spit you out. You probably would leave the room making less money per year and with fewer,if any,benefits. The reason collective bargaining works is because of numbers. The more people you have bargaining, the easier it is to come to an agreement. A labor contract protects you from your employers' natural greed and firing you because he does not like you for whatever reason.