In my country (Ukraine), the government has been implementing this technology for a long time. I know that accounting and use of agricultural land (land cadastre) is carried out using this technology. Blockchain technology in the world where the Internet is used, opens up very wide opportunities. After all, it can be successfully used where it is necessary to safely store online and have access of any third parties to large databases. And in our age, general and specific information is needed by everyone.
You could always outsource it to some database in some other nation but that would never be really truly safe, ALL of those places could burn at the same time, or maybe won't, who knows. But, when you do it blockchain way, we are talking about a small part of it in everyone's computer so even if just a single one survives, all of it survives at the same time, hell even if it doesn't, you could go back and start using it again from where you left it off. This is why it is so valuable to have it on blockchain, cheaper and safer.