In 2017/2018 with the sharp increase in the price to the ATH of $18 000+, people were saying that Bitcoin can never be a currency with that kind of fluctuation and volatility in the price.
In the 3rd & 4th quater of 2018 up to Jan 2019, we have experienced a correction from that ATH and we are seeing much less volatility in the price.
Would you say that Bitcoin has shed it's speculator skin and emerged as a true currency, after this correction? I think with most of the speculators left the Bitcoin scene in the last year or so and Bitcoin has truly transformed into a community of people who are more interested in the technology and using the technology as a currency.

Let's discuss, because I am very curious in what you opinions are about this.
It's completely depends upon your own decisions that whether to conclude Bitcoin as a matured currency or not. If we see inside the deeper meaning of what is a "matured" currency, then we can find that it means that the currency can be exchanged with all the currencies present in the world.
So why not to consider it as a Matured currency? Moreover in my opinion Bitcoin is being now accepted in all formats. Some people get their salary in the form of Bitcoins. Now a days we can buy stuff in the online market through Bitcoins also. So I would Fully consider it as a matured currency. Moreover waiting for more updates with the coins.