What is so hard for you to understand about that?
The "requirement" is completely and totally arbitrary and indefensible....if they were really concerned about maturity issues, then they would impose an age restriction....but that would be impossible to live with, as it would take talent off the market.
The bottom line, which you don't seem to understand, is that this lawsuit will turn on the law, not your silly opinions. When you address the legal aspects of this case, then we can continue our debate.