Stork Businesses can be a costly business. As such, it's not surprising they find ways to cut some corners. One of their most commonly purchased items are safety pins for securing diapers. Instead of buying those, the Storks instead taught the babies they delivered to tuck their diapers in, a method demonstrated to me by EvilFrenzy. Unfortunately, upon delivering me, I can't seem to get the flap tucked in.

You could say the storks could diaper the infants before leaving, but they cut costs there too. The diapers are now used as the slings they carry babies in. No diapers underneath them, as that would exhaust their supply. That is why we have to learn ourselves. And we have to make sure not to lose the sling in the wind or we'd have nothing to wear.