Because it's gross and if I eat all that nasty shit gets rubbed off onto my food. I also don't eat breakfast right away so there's time for the toothpaste taste to wear off before I eat.

Coffee, weed, take a dump, breakfast, brush my teeth take my vitamins etc, rub one out, shower.

I wear a night guard for tooth grinding and I take a sublingual sleeping pill every night, so my mouth feels kind of mulchy after I get up. Also I get first shower and I best hustle through getting ready or my husband will be in there shitting for thirty minutes and I'll be late for work.

I’ve read that brushing your teeth actually helps protect your teeth from food and sugars you consume throughout the day. So eating beforehand bypasses that protection (unless you ask brush at night, which I imagine would be good enohgh).

I brush teeth right when I wake up. There's a dogwalk before breakfast.