This is a marvelous idea. There is another angle worth considering as well. How many times have we heart the plaint: the young don't understand because they weren't there?  Whether it is the wisdom, or the lack of...whether the decline or advance...since then. Also, we oldies, irrespective of any "wisdom" can learn by being questioned by young people.  Their "why?", sometimes incredulous, might be valuable to both.  Humbling for sure.