What are your thoughts on the usefulness of tribal knowledge when older (age-wise) employees change jobs? [0]

Then, the tribal knowledge they had at their previous place of employment won't be as useful somewhere else. Though I suppose you can make an argument that they might have similar workflows, or tools, or they might just have general experience that would be useful.

But I suppose your comment was more on the under-appreciation by management of existing tribal knowledge in a team.

[0] Perhaps out of necessity, e.g: company went under, or maybe they want a change of pace.

> the tribal knowledge they had at their previous place of employment won't be as useful somewhere else.

It cuts both ways. It pays to listen when someone goes 'We tried that at my last workplace, here is what happened..'

I've been lucky enough to have a few examples of that in my career.

There are different kinds of tribal knowledge. Some is company-specific, some is role-specific or domain-specific.