So far, we cannot make accurate predictions about the future of bitcoin, because it is too young. Not all States have adopted it, and indeed, a very small part of the world's population knows about cryptocurrency. It takes a long time.
Agree, from now bitcoin is a good invesment for the future, I believe that bitcoin become one of the best money especially in the payment transaction. This is the beauty of bitcoin especially to the pioneer, they have advantages to the future of bitcoin and other cryptocurrency. Maybe this time it is not legal in other countries but for sure if they discover the true advantages and benefits of bitcoin they take the opportunity.