Question

My mother told me something once where she said that person needs to think that you care before they care what you think

Answer 1

whats the question??

Answer 2

So what you are saying is that your mother told you a phrase once that in order for a person to think you care, before they care what you think...
I think your mother is a smart woman.

So if a person needs to respect your opinion because if they don't care and respect you they wont care what you think.