Hope this eventually cuts shipping prices in the US by at least 50%. In the US you generally need to spend more than $10 for something minor to possibly cover shipping.
In China you get free delivery over most of the country on purchases as least as little as 5RMB, for a toothbrush or a bag of snacks or something, that's less than a dollar, and it's not fake free delivery in which you prepay more than a hundred dollars per year and end up stuck with one seller with a fixed price like Amazon, you just pay the one seller for what you're buying at the moment, so in many cases you could buy small batches(usually 2-2.5kg, not that small by shipping standards) of fresh produce costing a total of $3-4 on the web, at cheaper than the local supermarket, with free shipping. In the US you need to spend maybe 10 times that for a delivery to happen and they charge obscene "tips" for delivering produce.
And the delivery people in China aren't even poor, they generally earn more than low rank white collars, and I don't think the purchasing power of the USD more than 10 times that of CNY, so something is seriously broken about the whole logistics network of the US and if it's the labor cost then this could fix it.