Compared to fiat currency, Digital currencies are very powerful in-terms of control. You can control your own coin. There is no interference from the government, no one can rob it or counterfeit it. You can use it globally and expand your business internationally. I don't find anything more powerful than this! what is your thoughts on it !
Digital currencies are actually vulnerable to being under control. Not only digital fiat money, but also crypto (all the fiat money in the world are digital now too). So, decentralised blockchain system is only the way of effective data processing, and btc, as well as other coins, are actually enormous testnets for fintech industry. As for legal control, there is a problem: crypto is anonymous, so no property legal status can be applied to cryptocurrencies, and KYC (a thing that most crypto-legalising laws tend to provoke) deanonymises users, so legal status can't be established at all. As for robbing, seed phrase can be stolen, so, unfortunately, in case of crypto robbing is possible too...