It probably saves a ton of time not having to make that run yourself. Also, often just because something isn't common doesn't mean it isn't possible or doesn't

It probably saves a ton of time not having to make that run yourself. Also, often just because something isn't common doesn't mean it isn't possible or doesn't happy; it just means that cultural norms swing one way or another. I'd bet the fish truck is ower-operated (even if the owner is a co-op), for instance, which probably has roots in how things were done for a long time.