I used to do tae-kwan-do for 2 years and i found that there were too many rules in fighting. No leg kicking, no punching, always keep distance, no knee strike. However, in tae-kwan-do they also teach you grappling techniques and how to defend yourself from people who hold knives or broken bottles . Those self defences were brilliant but there were definately more kicks involved. You won't break ribs, hurt yout knees, nor will you be asked to kick a tree all day to make youself stronger.
I knew a guy who used to do muay thai and every week he came to the school with broken nose, knees hurting, generally a lot of bone injures.
I knew a guy who used to do muay thai and every week he came to the school with broken nose, knees hurting, generally a lot of bone injures.