I've in the past helped designing secure (p2sh) multisig protocols for one of the collaborative custody providers and that implementation has tons of users. Real examples I've been confronted with the past decade that can happen when you lost a key and then find that:
Sanctions against your country have been introduced
KYC rules for your country/state have changed or you moved to another state
New rules around using Chainalysis flag your coins
These companies commonly won't break the law for your coin, so be very careful when you consider this.
I've in the past helped designing secure (p2sh) multisig protocols for one of the collaborative custody providers and that implementation has tons of users. Real examples I've been confronted with the past decade that can happen when you lost a key and then find that:
These companies commonly won't break the law for your coin, so be very careful when you consider this.