You can do a lot of that in a transit. Transits are great, I love the extra cover of the back and almost bought one over my current Tacoma. Their are limits, though. For example, as a gardener, I use a lot of wood chip mulch. It’s sold by the scoop from a front end loader they drop right in the bed of a truck. If I had a van, I’d either need to bring the trailer, which adds weight, fuel inefficiency, and maneuvering difficulty (parking). I could buy it bagged, but it costs twice as much, weighs more because the bags trap moisture, and now I have to schlep it around instead of shovelling it into a wagon and dumping it where I need it. It’s just one use case, but I’m sure there are more. Also, I’m pretty sure a transit doesn’t have the flex body of a cab-bed truck, so weight in the bed or towing is strain on the entire body, causing wear and tear. But I do wish most people had vans instead of trucks, where those vans are more efficient and safer than trucks of equivalent class.