Weight loss and goal setting are two inseparable things.  I m sure you have heard of the adage that says "if you fail to plan, you are planning to fail". This is as true as it gets when it comes to losing weight.

It is not that people do not know that they need to lose weight, rather is the accuracy of how much they need to lose and why they need to lose it that is not clear.  The same way you are likely to run off the road if you are driving in the dark without lights, is the same way you would fail if your weight loss endeavor if your planning is not accurate.