What's with the American obsession with pickups? Hard to find a worst design when it comes to practicality. You carry extra people way more often then huge loads. If you do need to carry big loads just get a van, at lest your cargo is protected from the weather and people. If you don't carry extra people or cargo get a smaller car. Almost no one uses pickups in Europe and everyone is still getting their job done. Where I live most old farmers just use this:
To start, yes many people get a truck that shouldn't, so no arguments there. But to think a van is just blanket superior undermines your point. They have different use cases really (I've never seen a welding van for example).
For example, as a truck owner who can only afford one vehicle, and who uses their vehicle for personal and work, a van would be no good for my needs. The vehicle needs to be able to haul both people when not in use for work (so crew cab is a must) and large/gross/messy stuff when it is. My tools need to be kept separate from the messy things, and those messy things don't need protection (and it'd be harder to load/unload them if covered like in a van anyways).
Plus, all the work vans I've seen in my area are bigger than my truck anyways so that's kinda funny.