Australia ... the UK ...

For example ...
http://www.totallyworkwear.com.au/pr...-vis-workwear/
http://www.kinggee.com.au/catalogue/?purpose=15
http://www.wholesale-hivis.com.au/


Road construction crews wear it, of course, but so does just about everyone who doesn't work in an office ... any construction job, farming, working in a warehouse, mining, working in a factory, driving a truck ...

Roughly half the working population.

So, if we wear hi vis stuff as cyclists, we don't stand out as looking odd. It's quite normal.