Joemoney: I don't believe that any of the different arts are for wusses. Each one of them demands hard work and concentration to become proficient in. Each one has it's stong points and weak points. Tae Kwon Do seems to depend greatly on athletic kicks and keeping your opponent at a distance. My age and bad knees were more suited for a more ' one foot on the ground ' approach. I don't know what your age is but , have you ever thought of 'getting back into it' ? The stretching and strength building has done wonders for my old legs. While I'm not that old, I will say that when I started, I was 42 and I didn't realize how out of shape I was. My 8 yr old started about 6 months after I did and it makes me green with envy to watch him do the kicks and splits, so easily. Just go to show the old saying is true " Use it or loose it".
" The most certain way to assure total victory is to understand that anything less, is a defeat."