I like what someone else mentioned of bikes doing the last mile or two. Vans could do the last 20 miles or whatever, and bigger trucks or trains the long haul.
I would also not put vans and box trucks (not that you did, I'm speaking in general) in the same bag, a van is almost the same as a car when it comes to driving.
And of course if we could lower the demands on delivery drivers (and riders? Not sure what you call them on bikes) it would lower accidents. I recently saw one of the new Amazon electric vans, and while I liked some things (no air or sound pollution), the driver was accelerating like crazy every time.
Also Terraria is a lot of fun and more replayable than most $70 games.