Many true Bitcoin enthusiasts actually prefer to use Bitcoin as a medium of exchange. They arent interested in investment or speculation or trying to sell at a profit.
Instead, they see Bitcoin as a way to engage in free association of trade without the need for governments to regulate the exchange. With Bitcoin, its possible to pay for goods and services instantly by transferring the digital money straight from your wallet to someone elses digital wallet.
Yes maybe bitcoin can ve effectively use as a medium of exchange but the problem is not in all places bitcoin is accepted and worst not in all places bitcoin in knowm by people. Adoption first, then acceptance especially by the government.