This may be in part because these quadrants are more other-oriented so we become used to taking into greater consideration the wishes and desires of others as opposed to operating independently. If you have more planets on the left half of the chart (or quadrants 1 and 2), you generally feel that your ‘fate’ is in the hands of others.
If you draw a line exactly through the middle of the chart-the tenth house/ midheaven to the IC, fourth house-exactly down the middle, you will either have a predominance of planets on the left side or the right side.
There is a quick way to determine whether or not you will live your life feeling you are in charge of your own destiny or if your life is pre-determined.