Self organizing doesn't work because everyone wants what's best for themselves. Every grassroots activity has figureheads and leaders. Hierarchy is literally older than civilisation and observed in most animal life.
I believe that's the problem with capitalism as it is today. Whomever owns the means of production has literally zero constraints on maximizing their convenience. The expense ends up drastically inconveniencing, to the point of being a barrier to access, everyone who doesn't own the means of production.
maybe cooperatives are a potential solution to that issue?
that does not follow: just because something is natural doesnt make it good or desireable