I agree about age brackets in the sense of identity development. Hence, being caught up in the lives of others as opposed to soul searching and solidifying enriching self interests. Hopefully, some if not most will outgrow it--but I can attest to knowing mature women more mature that I who have yet to. (Men too)

That is why the suggestion to branching off into your areas of interest and changing direction is a wise one. Even if they remain unwell, you won't be.