> To me, what executive function means is that I have projects that I am interested in, that I would like to work on, that I would be happier for having completed, that I am unable to complete.

What you are interested and what you like to work on (and how you should go about this) is in part informed by said 'productivity culture'. The same goes for meeting friends. I've lived in environments/cultures where the need for 'executive functioning' to pull this off was almost zero, because it'd just be part of the rhythm of life rather than some planned activity.

Just to provide a bit of counterpoint; not saying you're all wrong.