Hauling is fully enabled (I never turned any of it off). I promise you, I watched 5 dwarves faff about, with only 1 hauling to the depot and the final one being the broker. Every couple of game days three others would break off their nonsense and haul 1 item each to the depot, and then go back to playing with their toes or whatever. I can excuse the doctor, because he's a scholar and was likely having trouble with the little gears between his ears, but I don't get the others.
No burrows either - I never use them.
They will harvest plants, but won't take plants to stockpiles unless it's straight from the farm plot. They aren't hauling seeds away from workshops either, but simply taking seeds directly from the (for example) quern and planting them. They'll put the sand bags in the sand bag stockpile after collecting sand, but won't even pasture the loose dogs anymore.
Who's got time to haul bags when there are workshop jobs to perform?
Only a couple of them have workshop jobs. The rest are idling or pondering pulmonary medicine. Here's a cap:

For bonus points, I have some tiles designated for mining, and the free miner is still doing nothing.