Cryptocurrency will stay, it's here and waiting to be develop, if bitcoin will survive, the rest will also survive.
It will need time to develop, people are investing now thinking they can get good profit as the demand increases in the future, they put
risk by doing that but they believe on the potential of crypto.
Bitcoin has to survive, it will definitely survive well because bitcoin is the King as well as a crypto ecosytem's foundation. Without bitcoin, in case bitcoin falls to death, crypto ecosytem might collapse. Additionally, blockchain is future of human society, so blockchain will mature over time, bitcoin will survive, as well as good altcoins.