Do people really need this?
Sure, it'd be cute for a kid — but even then, you should just be teaching your kid how to peel a banana like a normal person does! Plus, you're an adult and can just do it for them if they're struggling.
It costs about 4 euros, so about $5. Totally not worth it.
Kinda funny that it even exists!
Though… it's your money. Use it as you see fit! LOLz!