If I use dental floss and interdental brushes every day, won't the gaps between my teeth widen?

Personally, my teeth tend to be weak, and even the dentist tells me to make sure to use dental floss and interdental brushes.

But I'm worried that if I use it like this every day, the gap between them might widen.

Even if your teeth get separated, use these two things every day.
Would it be better to take better care of my oral health? Now that my teeth are spaced apart, it seems like food gets stuck in them more easily.