Being seated in almost empty restaurants

It seems that almost every time we go to a restaurant that doesn't have many people there at the time we are seated near the other people. Why do they do that? I would prefer to be seated away from the other people so that we have more privacy. We have experienced this in a wide variety of restaurants.

Also, are there restaurants where you can just walk in and request a private room? I have tried searching and I can only find restaurants that require you to call so you can "plan your event".

Legislating morality

I often hear "you can't legislate morality" but that doesn't make sense to me. Murder is morally wrong and goverment has laws against murder. Maybe some people mean that laws can't change the morals of the people -- and I agree with that. But laws can change the actions of the people to reduce behaviour that is "immoral". Laws against murder don't prevent all murder but they do reduce it signifcantly. "Moral" laws help prevent people from harming each other.

The question then becomes: Which morals should be made into laws? I believe that answer to that varies by level and location of the government jurisdiction. i.e. Murder is generally a state crime and pet laws (leash, doo doo pickup, etc) are generally local crimes.