No kidding. The mismatch between common recommendations in North America, and what people do all the world over is huge.
Co-sleeping in particular is this bizarre thing where all the professionals warn against it as if you're playing Russian roulette, while half the people I know do it themselves (and are afraid to talk about it). Nevermind that essentially the rest of the world does it, and we did it before 5 minutes ago.
I get that folks have different preferences and level of comfort, but the rigidity and judgement that gets pushed is kind of hard to believe. It seems like safetyism run amok.