Good knives are important for preparing food. Like all the other "tools," each knives have its speciality.
Most knife blades are made of steel, but ceramic knife is also available.
Learning how to use knife is one thing, but how to keep the knives sharp is other thing.
Steel knives can be sharpen by ceramic, but ceramic knives must be sharpen by diamond (due to its hardness - please refer to pictures.)
Children's knife is a great start for children who are interested in cooking. It is not sharp enough to hurt himself/herself, but gives you so much fun practicing slicing, such as banana, sausage, etc, things which are soft.