So I was at Red Lobster (I know, we had a gift card so we had to go there

) and during dinner they decided (as most restaurants do) to turn down the lights to create "mood lighting".
This always annoys me because we were perfectly fine with the lights the way they were, but then the lights go down to where you can hardly see.
My dad was saying "I can see if this were a fancy restaurant and they wanted to create a 'romantic' feel, but this is Red Lobster..." - and the place was loud with tons of families.
So why do they do this? I said that there's probably some research that shows that, when it gets dark out and you walk into a brightly lit restaurant, your eyes aren't acclimated which will cause people to be less hungry

- I was just kidding, but who knows - they probably DO have some sort of research like this.
Does anyone know of a really good explanation for doing this? I was even saying that it wouldn't be so bad if they turned it down a few notches every 15 minutes so that you didn't really notice it, but even though they turn them down slowly, it's still too jarring and annoying.
My mom said, "well, maybe they don't want it too bright in here" and I agreed with my dad when he said "So then why don't they leave it dark all the time? I mean, you don't eat dinner at home in the dark".