> Kids play in front yards with zero street lighting all the time

Street lighting is consistent enough to be used to define built up areas for speed limits in the UK.

> in parts of the US, deer are everywhere.

which is not relevant to a discussion about car headlights in the UK

> we drive defensively because of the uncommon things we encounter

but its not worth making a common situation riskier to make an uncommon one safer.

> Street lighting is consistent enough to be used to define built up areas for speed limits in the UK.

I thought we were talking about the country, where things are not built up.

> which is not relevant to a discussion about car headlights in the UK

Nothing about your original comment suggested anything about being specific to the UK.

While the original article is about the UK, it seems very clear that the HN discussion is about car headlights everywhere. HN is a global site, and more US-centric than anything else.

> but its not worth making a common situation riskier to make an uncommon one safer.

This type of thing needs statistics to determine the exact right balance. But the picture you're trying to print of what it's like to drive in the country is just completely false, as many commenters here have pointed out. I don't know why you're continuing to insist on things we all know are not true.