Somewhere between the Pessimists and the Optimists there is a group of people who live lives of Maybe.  

Procrastinators are in this group...sooner or later they may get around to starting, doing and finishing stuff. Procrastinators live lives of Maybe - maybe that bad thing will happen if I do this? Maybe it won't? Not sure. Uncertainty. If you are a salesperson you will agree many prospective clients fall into this group. They would rather say "call me back" than "no". 

Sometimes, Maybe-people believe it is better to say Maybe than No because No tends to hurt others' feelings. 

And, of course, there are those who simply have the habit of being indecisive: they make up the majority of this Maybe group of people.

It seems to me, the major cause of indecision is lack of self-confidence. There are other causes for indecision, as examples - distraction, lack of interest and lack of consideration for other people's interests. However, if we spent enough time digging we would likely find a lack of self-confidence close to the roots of all these other causes.

The Effects of Maybe:

• Maybe eats up time. When their time gets eaten up, Maybe-people think they don't have enough time. Of course that's wrong-thinking. Regardless, of course, it sours the ability of Maybe-people to accomplish constructive things. I call this, getting in the Maybe rut. 
• Maybe generates anxiety and stress. These things permeate Maybe-minds and eat up space for logical thinking. This is another debilitating aspect of the Maybe rut. 
• Maybe-people are allergic to peace of mind. It's like Maybe coats their minds in Teflon...when peace of mind tries to visit it is deflected and doomed to never become comfortable enough to establish roots.