People say that they don't know what is the btc and there is no clear story for them to trust btc.
But the same people don't know what is the money and how it's created and they are collateral or some type of security body by themselfes.
Little do they know how the banks even creating money.
If people don't know about money then how can they know about BTC? You know many people knows money is nothings for emotions but many people give another conceptions about money because they know money is everything for living. Money do all kind of activities. So, many people says a stupid concept about money. According this concept, they want to be fool so that people shows sympathy to them.
There's a whole lot of security tht comes with money, I personally believe that after God money answereth all things man may need, there's so much you can achieve with money and just a very little you cannot get to achieve with money aswell, it's virtually a very big essentiality of life that we almost can do without as everything we do or work for is quantified with money so everyone even a very lay man understands and knows the concept of money and this can't be overly emphasized as it's evident even without trying to prove it.
People may not know and understand Bitcoin very well but a whole vast people know and understand money especially in their local Fiat because it's so much of an essentiality in their various society as it plays a huge role in their daily activities which includes their day to day activities aswell.
People naturally take some time to learn about any discovery. People used gold or various precious metals in ancient times after that they created fiat currency as a better medium of exchange. As far as I know China was the first to introduce fiat currency. It has been like this for ages but in recent times people have been increasing their interest in Bitcoin since Satoshi Nakamoto's discovery of Bitcoin in 2009. We may see bitcoins outperform fiat currencies in the future.
Bitcoin requires a person to have some technical knowledge so that they can focus on how to protect their assets. Moreover, fiat currencies were invented many years ago while Bitcoin's journey has only just begun. Although Bitcoin has spread faster than any other medium, many people are still lagging behind due to lack of thorough knowledge about Bitcoin. But hopefully as people start accepting it it will be able to reach that expected level with in shortest possible of time.