[jojobas]

This is such a privacy leak that I have a hard time thinking you're serious.

“You want to talk to Family Lawyer D. Ivorstein, but you haven’t verified their keys yet. However your contact Wife has confirmed D. Ivorstein’s identity”

[pyrophane]

Perhaps you could address that issue through explicit "family" or "friend" groups, where people can chose who they wish to verify for. That would limit the usefulness of the trust network but prevent the privacy issue you mention.

[aaomidi]

It would have to be an optional sharing. The UX would need a bit of work.

I would trust my technical friend with their chain of trust, but not my hair dresser.