Nonsense. Plenty of poor people have their teeth. I say he didn't brush.
I am approaching 70 and I have all but two of my original teeth. The reason? I have always kept my teeth clean (brushing and flossing) and I have had regular dental check-ups, paid out of pocket.
How can one feel sorry for a joker like this?
Throughtout mankind history and in the third world most don't brush. Someone's teeth rotting out at 21 is either chewing tobacco or meth in most cases.