I'm in two minds too - we've just started letting DD use our kitchen knives, but I'll admit I'm as nervous as heck about it as our knives are ultra-sharp chef's knives. DD is 9 years old but has an alarming tendency to be clumsy or off with the fairies!

I do like the idea of having a kid-safe knife in the house, but would never let on that it's anything but as sharp as the real ones.