why are bandages so big?

The Little boy had a teeny tiny cut on his finger, and insisted on a bandage (not using the TM names, but it was a brand name bandage) and, when I fetched one of the cool fishie bandages out of the medicine cabinet, we had to wrap the bandage completely around his little finger to keep the huge thing on. Now why do kids' bandages not come in a super small size?

I'll write about knitting later, I promise.