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.
Bitcoin is a decentralised currency which means it doesn't under control of any kind of authority or government and because of this many government ban it in their respective countries and this thing is one of the main reasons behind this topic. Bitcoin is a digital currency and it untraceable money transaction facility is the main reason behind many criminal activities and for many serious cyber crimes. Its volatile nature is one of the biggest reasons behind this topic.