As a newbie here and fairly new to the crypto world, I have always considered crypto currencies as a huge leap of faith. Let's face it, BTC only exists because of a few people's blind faith that it does. If the internet were to be shut down tomorrow (it is possible), BTC would disappear int thin air.
However, a proper solution is needed to replace the current fiat currency system we have urgently.

The best solution is a crypto because of its decentralised nature making it immune to manipulation but one that is also backed by something physical that you would be left with should the digital version vanish for any reason.
Yesterday the UNITY coin was launched, it ticks all the boxes of being decentralised and will be backed by physical assets. I am surprised something like this hasn't been done before. It's a simple yet brilliant idea. Too early to tell right now but I would keep an eye on this one for sure...
Your mileage might vary...