the Child to concentrate on the Potty training.

As the Child grows older, she will inevitably want to feed herself.

I am sure you are quite capable of writing any standard C function from scratch, without even consulting any textbooks.

But would you argue that no-one should ever use standard debugged library functions?

The alternative is re-inventing the wheel. Improve the wheel, add new features to the wheel. But you will limit progress by starting at the beginning every time.

David.