The rest if it I don't get - it makes your car more visible yeah ??
If someone can't see a car in broad daylight, they shouldn't be on the road !
If it were that important here in the uk, car manufactures would apply it to all new cars & the law would make it a compulsary thing to do for folk whose cars aren't brand new.
It's not even about the visibility in most cases.
Imagine this scenario for example as it seems to be the most common I've encountered.
There is a fair amount of HGVs in lane 1. Few enough that you could pull in after each one reducing congestion, but just enough to warrant being lazy and staying in lane 2. So then you have the other people in lane 3 passing the people in lane 2 by a low relative speed (say 5-10mph). You're not going so fast that you couldn't safely pull in after each one, but it's just easier to stay in lane 3.
If you approach someone from behind without lights on
(in the day of course), you'll almost always have to brake. If you have your main beam on, quite a few cars will see you coming and pull in to let you get by without holding you or them up.
Secondly you have the people that obviously do see you, but either haven't been paying attention to what's around them for the last few moments or need to quintupple check their mirrors and blindspots meaning you have to brake for them, but they move quicker than normal.
Then you get the gheys that will sit there to spite you, and only move in to lane 2 when there's a mile of clear tarmac ahead.
Phew that was fun...