I brought my 5 year old son to watch a Karate class and he really seemed anxious to try it.  The instructor was highly recomended by reputable word of mouth, so I trust his advice.  However, I was a little let down when the instructor told me that the class would be so much more benificial for my son if I were to take class with him.  I am a 35 year old Firefighter/Paramedic who is in good shape, so i feel like I could benefit from the training, but I almost felt like he was after more money.  Like I said though, this seems very unlikely since he was so highly recomended by other students whom I know personally.   I must admit that I have been thinking about little else lately and have a sense of excitement about getting started.  I've always wanted to get involved in martial arts, but missed the boat many times over.  Am I too old to really get involved?  Should I enroll just for my son's sake?  Any advice for would be greatly appreciated.