Bitcoin already IS the currency of the future, and the future is now. But even most of the people who already own bitcoins don't use its full potential. Keeping money on exchanges, or using centralized KYC/AML exchanges at all, thinking about bitcoin only in terms of it current fiat price, worrying about bitcoin "regulations" and so on. The technology of the future is already here, but the minds of most people are still in the dark ages of fiat currency and it will take some time to fully understand the revolution we are living through.