[javbit]

You could probably use Shamir Secret Sharing so you'd need to have k out of n parts to recover the information. Downside is that this complicates what is supposed to be simple.

edit: I see other commenters shared this idea too.

[jeffparsons]

We "just" need a way for secret sharing to become mainstream enough that it no longer matters that it's complicated or unusual.

[t_mann]

It'd increase security vis-à-vis burglars, but for it to work for this use case you'd need relatives who can recover Samir secrets.

[adrianN]

If they don't care enough to find someone who can recover them then whatever is protected by the secrets is probably not that important to them.

[t_mann]

Also true. Slightly weird instruction though :D "Here are 5 keys for 5 people, if something happens to me you'll need any 3 of those keys, then the neighbor kid will be able to help you get the password".