Recently, the news of always-on backlit meter cluster has been taking its round, stating it is dangerous and not conforming to international safety standard. I am not going to argue or take side on this, and as a driver myself, I could only admit that it happen before to myself on the forgotten headlight issue as the car meter cluster is always blasting its lightwaves in front of my eyes beautifully.
Looking at 2 cars that I am driving now, both are equipped with always-on backlit meter cluster, and both have an indicative light whether the car headlights are on, as pointed out in the photos.
The first photo is taken from a Citroen C3 and second photo from a Honda City. Thus one could easily see that smart manufacturers would have given the always-on backlit cluster some deeper thought to add in the headlights "on" indicator. And by the way, the Citroen C3 is a 2003 manufactured car, and the Honday City is a 2009 unit. These add to the doubt that in fact, in some countries, this indicator might be a compulsory item for the always-on backlit meter cluster. Or there were too many complaints that forced manufacturers to put this in place.
Advise to engineers out there...tiny little indicator does not cost much, yet it is solid proof on whether you are smart to think further as a user, or just having a plain flat brain.