So I used to live near (60miles north of) Helsinki and would drive maybe once a week to the office. When the clocks moved, I would either need lights or not.
Back in September, my wife got a new job, so we moved another 300km north. My commute is now 400km.
It's difficult to relay how different the roads are here to the UK. Of the 400km down, the first 50km is lit. Then it's darkness all the way until about 25km before Helsinki. There are junctions that are lit, small sections maybe, but most of it is dark. And in October, November, that means *dark*. No snow to reflect light, just damp asphalt that eats it. I'd not realised how bright moonlight can be until a trip a few weeks back. But we're hurtling towards summer again now. It's still not completely dark outside and it's 2130 here. We're a complete 2 months away from the solstice. For the next weeks, when I drive down, it will be light. When I come back up, it might be dark for the last couple of hours - in a month or so, not even then. Then, in July, things will start rapidly getting darker again...
Now add in the wildlife: that's the foxes, bunnies, wolves (yes, really), badgers, wolverines, deer and elk that roam the place. You want to see them well ahead of time, and i'm driving during dusk and sunrise, the times they're most active. I would much rather see them than meet them. And to be honest, the traffic levels here.... well, the other week I counted 10 cars coming the other way on the 9 between the motorway south of Kuopio and Suonenjoki. That's about 30kms, so call it 20 minutes of driving. It gets busier closer to Jyväskylä, but it's normally pretty empty. So light becomes *really* important, as you don't want to be caught out with an Elk when it's -26C.
This is all road-legal in the EU, the reference is only 45. With 35 from the original lights, we're at 80. 100 is the limit.
TL;DR:light is life up here.