Question! Do I really have to get a scaling done once a year?

My dentist told me to get regular scaling, but since I brush my teeth thoroughly, I'm wondering if I really need to get it done every year.

I'm confused because I hear that people who get tartar easily need to get it done frequently, but I also hear that if you take good care of yourself, you don't necessarily need to.

Are there actually any of you who get scaling regularly? I'm curious to see if there were any differences in gum health or bad breath after getting it! Please share your reviews :) ^_^