Blockchain is the wrong solution to anything
Blockchain is an interesting technical hack to make Bitcoin work.
It works equally well/badly for all the Bitcoin clones out there.
For anything else... it doesn't fit.
The whole hype about blockchain is (at best) buzzword-driven / solution-driven architecture. I.e. "we know what the solution is, lets try to fit it to another problem even though it's not actually the best solution to that problem". All the blockchain applications I've heard of could be implemented simpler and better with normal centralized databases.
At worst, most "Blockchain" is a scam that is used to part the gullible from their money.