Is it normal to eat boogers as an adult?
Mostly.Normal for most people
It’s not unusual, even among adults, though most people keep it private because it grosses others out. It’s usually harmless, but frequent nose-picking can irritate or injure the inside of your nose.
You’re not the only adult who does it. Plenty of people have the habit; it’s just one of those things most people learn to hide because it’s considered gross or bad manners, especially in public.
Eating a small amount is generally not a big deal, but picking can irritate the skin inside your nose or make it bleed. If you want to break the habit, keeping tissues handy and washing your hands afterward can help.