But the majority, still won't accept the concept of bitcoin and its usefulness and still prefer fiat money.
As how closed those other people's minds are right now, how much time do you think it would take for everyone to accept the concept of bitcoins??
Or is it just a childish dream and will never happen??
Bitcoin's economic model is simply built on a childish conception of "money", namely a collectible. In the mean time, people have found out the real economic functions of money, and one of those functions is "unit of account", hence a guarantee for a predictable stability of price. Collectibles cannot do so. Only assets which have value-regulating mechanisms can. Moreover, bitcoin's economic model is based upon "sound money doctrine" who prefers collectibles over value-regulated currencies, for the sole reason that seigniorage is perceived to be bad. Bitcoin has HUGE seigniorage for early adopters.
As such, bitcoin's economic model is ill conceived to be a good currency. But it is brilliantly designed to be a highly speculative asset, of the kind that financial markets love to play with. Don't worry, crypto will be loved by banks, but it would be even far more dangerous than the subprime toys they played with. This is hence what it is becoming: a speculative betting token.