Do I really have to get a dental scaling once a year?

I often hear at the dentist that I should get a scaling.

I became interested because I heard that it is covered by health insurance.

However, I am wondering if I really need to get it done even if I don't have much tartar.

People around me said it's good to get it regularly.

Conversely, there were also opinions that there was no need to receive it frequently.

I am curious if the cycle varies from person to person.

I've heard that your teeth weaken after receiving it, but I'm not sure if that's true.

I want to know exactly and manage it.