The shift towards blockchain transactions will be gradual and will require easy to use and safe platforms.
There should be a way to use any currency out there (fiat, crypto, or even other goods and services as payment) in a decentralized way.
https://virieprojectblog.com/the-currencies-of-a-free-market/
fragile ? how . just because its online and you cant feel them and you think that means weak ? but no for me .
there are now many securities invented or upgraded so that hacks can be prevented . fiat or any other goods cant be same as crypto or cant be decentralize imo but people right now have the option to choose if what they prefer . sure the majority can switch to blockchain but this will be slow and it isnt easy but safe ? yes it is .