I think the weird transitional part still lies ahead, when people born after the internet age become elders. Currently, our elders lived in a time where their elders were valued, so they're met with a hostility that didn't exist for their elders in situations where they probably expect respect or appreciation. It must feel frustrating.
Negative aspects aside, I believe there will still be value in elder wisdom. Not necessarily through traditional knowledge transference on subjects evolving day after day, but on how to navigate the stresses of a modern life, developing/recognizing healthy interpersonal relationships, and adapting to change. Transferable life skill knowledge that isn't necessarily taught in school or from busy parents. This can be passed on to grandchildren or mentoring children growing up in challenging situations via volunteerism. But, like the author pointed out, reliably tapping into this seems challenging.