I live in Germany and I just buy milk, soda, water and yogurt in glass bottles from my local supermarket. All are from companies less than 50 kilometers away and will be washed and reused several times.

So there are places in the world, where this is still possible, although there no longer is a delivery service. But it's more expensive than plastic bottles and even more expensive than single-use plastic, so the majority uses plastic alternatives. Most milk here comes in some kind of cardboard containers that are mixed with a lot of plastic.