Some times it is hard to attain varied diet for families of different ethnic background.
Some families prefer to eat certain foods without diversifying their and their child's food choices.
For example, in Chinese culture rice is the staple food and most of the time is the only choice of starch.
It is a good idea to introduce a child to potatoes and yams and squash and buckwheat.
All these other starch choices supply many different nutrients that are excellent for the child's development.