Do you mean wheelbarrows or minecarts? If wheelbarrows, I'd second that. We should at least be able to equip them to workshops.
Wheelbarrows. Minecarts are attached to their own tracks, obviously.
The way that I (and probably most people) used to set up stockpiles, I would start off by digging some open space in a soil layer, make a "everything but stone" stockpile, and start dumping all my goods from the caravan into it.
If you do that now, though, only one dwarf can claim a wheelbarrow to do a hauling job at a time, and they'll take a wheelbarrow to carry things that are light enough you don't need a wheelbarrow for them.
When we were getting wheelbarrows, I was expecting wheelbarrows to just be left lying around most of the time, and only grabbed when a job that was heavy enough to require a wheelbarrow was needed.
What this does, however, is make players have to spend more time initially setting the stockpiles up, since they need a complicated manually crafted supply chain, but once it's running, it will generally work well, if you micromanaged it down to proper functionality.
It does, however, make starting the game up a little more annoying, so I'm wondering how much of this is still just a work-in-progress...