Cover Letter For A New Hygienist Should I Say Why I Am Looking For A New Job In A Cover Letter?

Should I say why I am looking for a new job in a cover letter? - cover letter for a new hygienist

I am applying for a new job. I say in the letter why I want to leave my current job? The new plant will be something like a pay cut, so that someone ask why you would want to move. The first reason why I go to my current job is not only a challenge, and I'm ready for something else. The other main reason is that you do to a region of the country move closer to my family. So I think put in the letter. Is this a good idea? Thank you.