Yep, lights work really well when you have two or more visible to each direction, so if one malfunctions you still have a backup. I just can't understand why people go through putting 200 bucks into their light setup, but won't buy 10 bucks worth of reflectors. Reflectors just are so cheap, easy and add to your existing lights, IMO it makes no sense to skip them.

I agree that it can be sometimes a bit easy to forget that many people don't ride a bike as a hobby, for them it's just a practical vehicle to be used a couple times per week, or only during daylight hours. Plenty of people around here riding without any helmets, lights or reflectors - they just don't see it worth the investment or don't want to take time to put them on each time.

They have safety awareness campaigns here, where they give free reflectors to pedestrians to be seen on dark wintertime roads - I'm thinking some of our no-light cyclists could use a campaign like that as well