In my experience, brushing after every meal does not SOUND strange, because most every dentist I remember going to has tried to drill (no pun intended) that into my head. However, making it a practice, at least in my own case, is more difficult.

I have pretty good teeth. Despite the fact that, as much as I hate to admit it, once per week is probably the most accurate count, I have no cavities, no extraneous issues of any kind beyond having my wisdom teeth removed.
My teeth seem able to handle anything I throw at them.

I can offer no discussion concerning women and lack of razor usage beyond saying I've heard those stories about European women as well.

To expand the topic slightly, what about the simple act of washing hands?

I know of some people, though, that practically obsess about it...carrying their own personal hand sanitizer packs with them, won't touch doorhandles, etc.
I consider that excessive.
I don't know about anyone else, but I rarely, consciously, wash my hands. Germs are going to get in/on me whether I like it or not. I figure let them do their work, let my immune system fight back and I'll develop stronger immunities. I haven't had an illness keep me off the job in over 8.5 years (I did have some stomach issues that kept me from work in the last couple months, but that wasn't germ-related...I pulled a muscle in my stomach so bad I literally could not stand/walk for more than a few minutes).
I touch keyboards and mice handled by over a hundred people every day, most of whom are school-age.
I'm not saying I don't get sick, just never sick enough that some Nyquil, Alka-selter or Theraflu won't fix it.
Also, every so often the news gets into a rut talking about 'super-germs' and how modern antibiotics are killing the weak and making the rest stronger. Well, I'm doing my part to keep the weak germs around.