How to expect growth after that?? how to interest large players to invest in cryptocurrencies if they do not want to lose money due to hacking? It is strange that some States have legalized cryptocurrencies and equated them to Fiat money.
Most of the money lost come from hacks to exchanges and ico scams, so as long as you stay away from them then you will have your risk reduced significantly besides it is not that hard, avoiding icos is easy just avoid investing in them, avoiding exchanges is more difficult since at some point you will need to convert your fiat to cryptocurrencies and vice versa but as long as you do not store your coins there and use a hardware wallet your coins are very secure.