They won`t be so enthusiastic,when they find out how much it will cost to implement the blockchain technologies and much electricity will be consumed.
OP said they are enthusiastic about
blockchain.
This does NOT mean that the costs (electricity) will be higher than currently

It is not about an asic-flooded PoW chain, but about decentralized, immutable and trustless data storage. You have to see the value in it.
Just because they might use a blockchain, this does not mean that they use PoW or any other currently existing consensus algorithm.