Once you make a decision you should follow the same. Sometimes it may happen that the decision we have taken is wrong. We should no go on worrying about that and we should analyse our decision and we should never repeat such a mistake.
Knowledge is power.
Let us take an example of our elder son studying in class twelve with both the combination of Bilology and Mathematics. We are under the impression that he would get through the Medical Entrance and if the same formula does not work, he can crack Engineering Entrance with the option of Mathematics. If such a provision works, we can think that our decision for the continuance of both Bilology and Mathematics was a right decision though he was subjected over stressed due to this dual combination.
What I feel decision making should be based on the frank interpretation of the party who is affected in such a process. It should not be taken unilaterally otherwise a different scene would emerge.
There will be some decisions to betaken which may not impact much even if they go wrong.
However decision makin becomes difficult and tense whenwe know there are many qual alternatives , and there iare different risk and benefits attached to every one of them.
Decison making also becomes difficult when the decison will bind or impact other perso(s).
In such situations one should take help of experienced and expert persons.
One gets a greater power of taking decisons by default command position or satus, by knowedeg, experience and expertise. However wherever possible and proper decision making may be delegated to some other right person. That will lessen own burden and tension.
But real self decision making process starts when the person is intellectually matured as well as self reliant.