This is like handing over your trezor or ledger nano S 
I know it's easier to handle for a person who is not so tech savvy, but what in the other topic of this I've already asked the founder: what happens if I have this banknote (card) and by the time when I want to hand it over, the secure chip fails inside? I know that the coins will still sitting on the blockchain but how I can move them if I can't make a backup?
If I lose it, then it's the same like I lose a real banknote, because it's my fault, but if there is a hardware fault, that's not the same...
I know it's easier to handle for a person who is not so tech savvy, but what in the other topic of this I've already asked the founder: what happens if I have this banknote (card) and by the time when I want to hand it over, the secure chip fails inside? I know that the coins will still sitting on the blockchain but how I can move them if I can't make a backup?
If I lose it, then it's the same like I lose a real banknote, because it's my fault, but if there is a hardware fault, that's not the same...
From what I've read on their website there is no backup so if it fails or you lose it then you cannot get the private key to your funds any other way. This is what makes them different to other hardware wallets, the original owner has no access to the funds, only physical access give that.
This might be usable like a banknote if they were priced at a few cents rather than $20.