User blog comment:Dominic1743/“The Heroes' Journey” Discussion/@comment-108.36.76.116-20200124023326/@comment-108.36.76.116-20200125225015

If someone needs to take Chuck's place, to do it well and have wisdom to judge humanity and be wise enough to know what to do and what not to do, experiencing the range of human experience seems a good thing. At this point, Sam, Dean, Castiel and Jack have all experienced life as ordinary humans. They've had  parent child issues, baby care (except for Jack), rebellious kids, terminal diagnoses, dementia, loss, relationships, such a gamut of experience. This seemed to fill in a gap, the regular ordinary stuff going wrong in a non heroic way, and Sam and Dean still showed up for work.