Answer 1

the following link is a beautiful discussion about why we should use the pointer and why it is important.
[https://stackoverflow.com/questions/162941/why-use-pointers]

This question is also related to your question which is about Array of pointers to arrays (Dynamic 2D array) and may have some value for you.
[https://www.sololearn.com/Discuss/797338/help-me-please-arrays-in-c]