Already covered Colin, I was referring to the attitude of drivers towards cyclist as it is a cyclists fault because (see link on next post I made after the one you quoted from) that is, the cyclist is at fault because they do not pay road tax ..... as used by motorists to defend themselves during accidents. ahem
Alas, getting back....
May be folk who ride bikes do not want to wear the hi vis associated with building sites. Cost is another factor, a search for quality clothing will reveal the costs involved.
Lights are similar, I used to purchase the Â£5 a set lights, totaly useless, especially along the miles of unlit country lanes and tracks I have had cause to travel along.
Manufacturers could do more as I said, I remember the hub dynamo which could make a come back and with basic circuitry have a rechargable battery to maintain the lamp when stationary, and of course, built in. I may be wrong, but cycles are the only vehicles designed for road use that do not have lights pre-fitted.