Re: Caution! Fenders are Death!
I would caution strongly against sweeping generalizations. Branding, age or country of origin alone do not inherently dictate quality or strength - any "old used" bike could be just as bad as a cheap new one if purchased under these misconceptions and vintage bikes may even cost more to restore & upgrade to motorize then buying a decent quality new one.
Every country has & does make crap as well as quality, nearly every brand has it's "economy" variant, shoddy manufacturing is a timeless practice.
It's far too complex an equation for such simple answers unfortunately, our only real option research - knowing what makes for a strong construction, what's needed for our application & ofc, checking to see if others have had problems previously with it or similar styles.