Cryptocurrencies are in my oppinion a revolution of the money as we know it. Also they give you more freedome with your money as at the same same time being preatty much safe! ATM though cryptocurrencys aren really usable but as the time goes on more ond more companies will accept it. Of course I have invested but I've not invested to make money I've invested because I believe in them.
Please get in to the cryptocurrency you want to invest before inversting! And of course be shure that you like the system behind it. Not just invest in random Crypto currencys!