Just like American Idol, its probably all about money. Music majors graduate and give people singing lessons. What mother/father would pay for music lessons if their music teacher told them the truth about their child's lack of talent? So, in order to make a living, they withhold the truth about the child's musically-challenged voice. The music teacher leaves the house, removes their ear plugs, and we're stuck listening to these kids on TV. Thanks alot!