Forgetting a bank password is recoverable because an institution can confirm who you are and restore access. Losing a private key is different in kind, not in degree.
Banks hold records, not your money
A bank account is an entry in a ledger the bank controls. Your password authenticates you to that system, and the bank can reset it once satisfied of your identity.
The balance exists independently of how you log in. Authentication is a gate in front of a record the institution maintains regardless.
Identity verification is the actual mechanism, supported by documents, history and legal recourse if the bank gets it wrong.
A private key is the capability itself
On a blockchain, controlling funds means being able to produce a valid signature. The key is what produces it, and nothing else can.
There is no record of who should control an address, because the network does not know identities. It knows only whether a signature is valid.
Losing the key does not lose a credential that proves entitlement. It loses the only thing that could ever have moved those funds.
Seed phrases move the problem rather than solving it
A recovery phrase regenerates every key in a wallet, which protects against a lost device. It creates a single written secret that must survive without being discovered.
That is an unfamiliar security model for most people. Physical storage risks fire, flood and misplacement, while digital copies risk everything that reaches a connected device.
Guidance to write it on paper and store it safely is correct and insufficient, because it does not address what happens when circumstances change over decades.
Social recovery distributes the trust
Smart contract wallets can define a set of guardian addresses that jointly authorize replacing a lost signing key, with the account itself never changing.
Guardians can be other devices, trusted people or services. A defined threshold must agree, so no single guardian can seize the account.
The tradeoff is complexity and a dependence on guardians remaining reachable. It replaces a single point of failure with a coordination requirement.
Inheritance remains genuinely unsolved
Assets held in self-custody pass to heirs only if they can obtain the key. An estate can be legally entitled to funds it has no technical means of reaching.
Arrangements involving multisignature setups, time-delayed access and instructions held with counsel exist, and their suitability varies with jurisdiction and personal circumstances.
Anyone holding meaningful value in self-custody should treat this as a planning question requiring professional input, because the technical and legal parts must fit together.