What do you think about this?
Bit bitcoin now is more investment instrument, but not a currency as it was in the beginning. A lot things were done for bitcoin future, but this is not enough...
It is indeed true that a lot of people rather find it convenient to consider bitcoin as a an investment than a day to day currency because of the opportunity to make good returns on your money if you are patient enough but it doesn't make it less of a currency because if the scaling issues are resolved at some point and the transaction fees are lowered and the time for confirmation increase as a result of increased block size i bet bitcoin will be a better currency than fiats.