It is not a legit currency because it is not regulated by the government, it is not implemented by them but someone just invented in it and they don't want people to become victimized of this as they were thinking that it was purely a scam.
Yes you have a point but for me people think that bitcoin is not a legit bevause it is only virtual. It is only created by a program that can e hacked by anyone. That's why they are thiniing it is a scam.