You don’t have to floss all of your teeth. Only the ones you want to keep.
I read that in a dental office many years ago and it stuck with me.
Last time I flossed it popped out a crown! Dentist encouraged me to keep flossing...real hard...his kids are in college.
My main problem with floss is, I need to floss again to get the little torn bits of floss out of there..