For me, bitcoin is much better than the real money at the moment. Because of the volatility, it became an advantage of bitcoin to other real currencies. It also became an opportunity for everyone who wants to earn or to have savings in the future as well. This might be the reason why it became big to them although so far it was a virtual currency.
You're only looking at the brighter side, it is not good to be optimistic, but also consider its price when it goes down due to volatility. Bitcoin is not only constant at going upwards when it comes to its price, it is not only increasing, there's a time where bitcoin will have a downward movement in the market and we need to accept that.
But overall, bitcoin is really a good source of profit and savings when you trade or hold it. This requires good decision making and patience in order to manipulate bitcoin properly in the market and you need to accept the fact that using cryptocurrency is really more risky than fiat currency.
Agree, fiat money has become more volatile and this may give a new impetus to the growth of cryptocurrencies.
Bitcoin is better than fiat currency when it comes to its growth, many people are investing in cryptocurrency rather than in fiat currency because it is really more profitable. Sometimes, there are people who are doubting about bitcoin, it is normal because we also experience hard times in bitcoin especially when its volatility strikes downward. Cryptocurrency can sometimes grow on its own because of other factors that affect and influence its price in the market.