We already have mechanisms for all of that. Any security it provides you can have without it, the only difference it had going for it was "it has blockchain" and that was the Arbitrary Magic Hype Word at the time - like "AI" is now and "cloud" was before. In reality that means it's a huge unwieldy system that wastes tons of resources for what's often really poor reasons.

I still think we could've used then to provide game ownership rather than just rentals