I think all those features are already available and working really well in a high-trust society. In any non-crumbling modern country you already have trust systems embedded in people and institutions, not algorithms, and when they fail you have a court system where another human can disentangle the situation and rule one way or the other. This is a much more desirable state than a low-trust society with algorithmically enforced rules.

Because when you fall in a blockchain edge case, you're fucked and truly fucked. Nobody can come up and save your ass if someone manages to take advantage of you despite the algorithmic safeguards (which may or may not be well coded themselves). Nobody can help if you die suddenly without handing your crypto keys to a trusted party. This kind of problems, which are trivially solved in the real world, are literally impossible to solve in a blockchain.

Sure, fraud and bad faith can happen in real world institutions, but that's really a marginal risk, everyday millions of transactions go on without a hitch. And when something fails there's always a chance of getting your day in court. On average, blockchain "solves" a problem which most people will never encounter in their life. I would imagine that there are interesting applications of the tech in high-stakes boring businesses such as logistics and banking but that's infrastructure that the end user would never even know exists.