I would not limit myself just looking for 10 years on bitcoin only but to the whole cryptocurrency economy.. So yes,, crypto will be a big player in developing one country economically and that is a huge statement,, I know.. But I do believe it will happen because even now at this price,, we can sense how it help individual investors financially and to see how it works out for the society,, high hopes is reachable..
It is good to be accepted need of era and technology importance of the future. You are right that not only bitcoin but cryptocurrency would be the source of future economical system but I think it should not be neglected that bitcoin is the base and mother currency of the cryptocurrencies.
I don’t avoid your statement completely that only bitcoin would be king currency because may be other cryptocurrency can overtake bitcoin but it is also reality that in the next ten years it is impossible for other cryptocurrency to overtake bitcoin.