To start off let us construct a situation were I am walking along and I pass another person. Depending on the time of day and to be polite I say one of the following:
- "Good Morning!"
- "Good Evening!"
- "Good Night!"
- "Good Day!"
Now 1 and 2 are common welcoming and polite gestures and I have no problem with their use. However the problem lies with 3: Why is it so dismissive compared with 1 and 2?
If I said "Good Night!" to somebody when walking at around 11 p.m why does it sound like I am putting them to bed?
Finally as a related matter, why is 4 not used too often? In other languages 4 seems to be more common then an equivalent "Hello!" and sometimes 4 and "Hello!" posses the same.meaning.