If a coin is going to survive long term it needs to become a national currency.
Thats the future.
Look at TemTum, in talks with Anguilla and more countries still to be announced.
I do not think all tokens have to follow temtum path as a national currency
There are diverse ways for a product to be successful and survive on the long term.
Solid products, good team of developers and necessary marketers does it quite well.