The feature that allows you to share passkeys and passwords in iOS 17 and macOS Sonoma is not at all limited to families. You can set up shared groups with any collection of close contacts. And you can set up as many groups as you’d like. :)
@rmondello can this work like a “vault”? Where I have a family which consists of spouse and two children. Can I keep my own passwords and each of them theirs but one “vault” where we have shared passwords?