Not everyone who believes in cryptocurrencies comes at it from the perspective of some young naive novice. I have spent 25 years investing other peoples money for a living and I can tell you without a shadow of a doubt cryptocurrencies and the blockchain will one day supplant all the Hedge Funds, Fund Managers , Banks and Insurance Companies.
Well, up to this point you need to live. If the community loses faith now, that will not happen. All growth depends on us and on investors, also on developers. If one of the mechanisms stops working, we will not see.