Do you find it really weird when you see someone with bad or badly stained teeth these days

I understand that not everyone has dental, but with regular brushing your teeth should be relatively okay and not fucked up, right?

• Nope. There are many different reasons (including certain pharmaceuticals) for stained teeth. Because the U.S. is addicted to sugar, pills, and coffee, it's not that weird to see some fucked-up teeth.

• I've known a few people whose teeth got stained because they used antibiotics, or because they drank coffee or tea.

  http://www.symptomfind.com/health/what-stains-teeth-the-most/