Bitcoin is a digital asset, which is acceptable globally, hence bitcoin investment is majorly for a profitable business after a long time investment. Having say that, Bitcoin is simply means a financial freedom easy to buy and sell.
This is the future, and it is because we believe in this future that makes us to start investing in bitcoin right now. We might not have gotten to the stage where bitcoin is being accepted globally as you say, because we still have some countries that are critically against it and we have some countries that are all planning on their own national digital currency in from of cryptocurrency which I know that they will all fail.
I believe that in future, they will all embrace it as global currency, wherein this will be the currency that all the government of the world will approved in future which will make the demand for bitcoin to rise and as the demand for bitcoin rises, the value of bitcoin would keep rising also which could make us to easily have a target of $1 million dollars in future.