The standard Questions

The Indonesian has this habit of asking very personal and private questions concerning one's life regardless whether the questions being addressed are appropriate..
The typical questions:
1. Have you have a gf/bf?
2. Where is your gf/bf?
3. Did you gain weight?
4. What is your weight now? *by this point I would say F off if I could*
5. Graduated from uni?what was your GPA?? *what does it have to do with you?*
6. Working now?where?how much is your salary? *I do HATE talking about financial matters to strangers*

Why can't they just leave out this habit of asking private useless questions?
What's with the kaypoh-ness?

Compliment someone all the time without thinking too much; criticize someone only when you have thought about it seven times seven times seven times...