Why do people don't believe in Astrology?

Our website presents plenty of articles on astrology, numerology,palmistry and many such related fields. Still why should I blog on this topic?
I see many people who don't trust in astrology. They give me one common reason. They say that its is not standardized and it is not a science.
My simple answer would be
1) Astrology is 100% dependent on Mathematics
2) Astrology has theorems/rules which dictate predictions
3) Astrology considers heavenly bodies which do exist as per science
It's a common misconception that astrologers are not reliable. Main reason being there is no proper university who does this as a course. Recently I see great leap in this field with people starting new courses, universities offering two-year full-time programs in astrology etc.

If you really want to try out the predictions and if you are interested in mathematics, start reading books on astrology on your own. You'll be amazed to see that many of those theorems coincide wit your past, present.