In simple terms until it gets a centralized state it will not be given importance as a legal currency. In my thinking it will get the legal status with some sort of limitations depending upon the government. It is legit, as everything happens through internet scamming is easier and this makes people term it as not a legit one.
I agree with you, before crypto currency sites are centralized and are under government control, bitcoin will not be considered a legitimate currency. now crypto currencies cannot yet be a legitimate currency because the government cannot yet regulate crypto currencies, in my opinion this is the reason people are still hesitant to invest in bitcoin. I also think that if bitcoin can be set by the government, the price of bitcoin will not rise higher.