People don’t understand Bitcoin, because Bitcoin is not the currency of the government or large companies, and there is no trust endorsement, and the governments of most countries do not recognize the legitimacy of Bitcoin, which may cause many people to have negative thoughts when they don’t understand Bitcoin.
I think the biggest factor in explaining bitcoin is because of the large number of negative news about bitcoin, moreover, many countries banned bitcoin for fear of being used for illegal transactions such as drug transactions, illegal weapons to be used for money laundering, of course people think that bitcoin is very dangerous and has no prospects because of the many bitcoin banned country.