Stores Covering Letter Is A Cover Letter Necessary When Applying For A Part Time Job?

Is a cover letter necessary when applying for a part time job? - stores covering letter

I go to college in September, I was looking for part time job just to earn some more money.

I am applying for jobs in the shops for real - you know, Starbucks, clothing stores and other things.

Is it necessary to write a recommendation letter to work like that? I have an application for Starbucks and I fight, not whether to write a letter to her.