Wing chun is a very explosive art whose practitioners employ low kicks and fast hand techniques, and utilize the concept of simultaneous attack and defense. Wing chun training helps practitioners develop self-awareness, agility and flexibility. It teaches them to use proper timing and correct positioning to defeat an opponent. It has perfectly logical movements which are natural and promote spontaneity. You should take into consideration your physical abilities and limitations, as well as your reasons for training in the first place.
Cost is another consideration.
It is wise to check with several martial arts schools in your area to determine the average rate of instruction before handing over your hard-earned dollars. Anyone can purchase a black belt and open a martial arts school, so it is important to watch the instructor teach some classes and get an idea of how he handles himself with his students. Ask him what martial arts association he belongs to and where it is headquartered, then call the organization and verify the instructor's rank and background. If the instructor is honest, he will gladly accommodate your request. If he is unwilling to cooperate, move on.