even it would... you still need to protect the user... which for "example" for now in the US would not value much.
On crypto... you can't depend on a country... it has to be universal... cross borders...
Someone would just "hypothetically" "steal" your finger... and take ownership. Some people might think that just too extreme... but try to explain to governments or general world mass population as that will "NEVER" fail... and after a while (probably a good while) you will get the answer... I am trying to say.
Blockchain does not propose solutions for 1 country... nor 2, 10 or 20... it's for everyone! It's public... it has to work against or in favour of everyone...
That's the beauty and the hard part of it at the same time.