Will parents/immediate family always be interviewed for a TS/SCI?

So far…

Two of my references as “close references” were interviewed in person. The other one wasn’t. However, other people have been interviewed in person such as my old roommate, my current roommate, and my aunt.

My immediate family and parents haven’t heard anything. Will they always be interviewed in the process or sometimes do investigators not interview them.

I’m not sure how much longer I have? I feel like it’s close…it’s been a year.

It is not standard to interview them.

Do you know if spouses individual credit is checked for a TS clearance renewal?