In the past Bitcoin was known and used for illegal payments, because the transactions were anonymous so most people had negative beliefs about Crypto. Not only that, Blockchain is also a new technology that most people don't know about and they call it a scam. This is natural, because knowledge about bitcoin is uneven. Bitcoin is now famous for its price skyrocketing in the last 5 years and those who enter the Bitcoin market just want to get rich quick without any basis.