As many ICO scammer make money from a Token said the token could be use in some Applications.
That makes public accept the wrong point. Even the blockchain expert of chinese government said the Dog-Coin is a scame because its USELESS.
Did your USD Note could be Sing a Song? of can be Dance?
Cryptocurrency is a kind of currency , it could useless like USD Note . The mission of a currency is Circulation & Consensus no need any application be company with.