I understand most of these ensembles did fail, but I still struggle to deeply understand why? What made these fails and made other neighbourhoods or projects su

I understand most of these ensembles did fail, but I still struggle to deeply understand why? What made these fails and made other neighbourhoods or projects succeed. Even if some of the successful ones were emergent and not subject to a grand plan, I still do not see where the critical difference is other than maybe people do not like to be told how to live.