Lived experience

Experience by proxy?

I'd say it was knowing all the facts, perhaps as a therapist about addiction but not living with/being a drug addict.
One would have experience of drug addiction and the other person a lived experience if that makes sense?

Vicarious experience?

The phrase ‘lived experience’ is nonsense. Despite other people’s suggestions ‘experience’ can only ever be something an individual has done. Any other interpretation completely changes the meaning of the word.

Though I await the feeble ‘language changes’ comment 😆