Bhargav wrote:
Well if you don't workout then you will not be able to place the kick correctly

)
Bhargav, there is certainly significant merit to that statement.
When my daughter turned four, we signed up for Tae Kwon Do classes together. Our teacher, a Korean gentleman was fantastic. We attended those classes for several years. My daughter broke her first board when she was six. I had no problem kicking the face on a guy taller much taller than me. We practiced that quite often. It was one of the easier maneuvers that we learned. We advanced through the belts quite well.
As my daughter got older and her interests changed and I started a new career,we decided to quit the classes. Today, I would not be able to replicate what was very easy for me back then. Of course, I am older now but I believe that if I had continued those classes, I would still be able to kick that high and with as much force as I could back then, as it is a learned technique. Without the regular workouts, I am not as limber or flexible as I used to be. I don't have the balance that I used to have either. If I tried some of the techniques we practiced back then, I would probably look as bad as some of those guys in the video posted by u_vaste.
Another thing to consider is that when you regularly do the series of exercises for each belt, the techniques become automatic. The defensive and offensive reactions to another persons actions can be done with very little thought process. However, it is a perishable skill. It's the same thing with shooting. With proper practice, it becomes ingrained in your muscle memory and you don't have to think of the basics (think grip, stance and breath control), you can concentrate on the higher aspects of shooting like sight alignment and trigger release. With enough practice even those can become second nature. No, or not enough, practice and your performance suffers significantly.
“Never give in, never give in, never; never; never; never – in nothing, great or small, large or petty – never give in except to convictions of honor and good sense” — Winston Churchill, Oct 29, 1941