In my view, only in a marketing context as some promotional tool - think “advice is give myself at 21”. That sets the context (advice for younger people) and allows you to define roles/filters = “I as a an ABC person to give advice to my XYZ younger self.”

And then market it to agencies who do content for media (books, films etc) as it might be relevant to their client base.

The issue is you’ll likely need some filtering mechanisms to remove scams, unsolicited messages etc, perhaps that could be done with some classification in the middle.