I think you make a confusion between crypto and blockchain. I would rather say that blockchain is the future, not crypto in general, because blockchain as technology is just great and many institutions already implemented it.
However, they can use blockchain without crypto as it happens today.
It is possible, and blockchain appeared before the first crypto, but there is no need now to use blockchain without cryptocurrency as it is too complicated. The role of cryptocurrency in this scheme comes down to the question of who decides which blocks will be added to the blockchain. Bitcoin is decentralized, and no one has the power to make this decision alone. It remains safe and the most secure choice.