Thank you for the replies, Donny.
It's hard to stay on topic with this thread. Replies tend to go off into "what is the best cage fighting system" or "what's the best martial art".
Self-defense is not cage fighting or sport.
Yes, bjj and MMA and boxing are good. But is boxing good for a typical comparatively weak woman? Did you ever see a typical woman throw a punch? How about a 75 year old trying to learn bjj?
Donny, you have answered the initial question with your answer: Wing Chun.
Again the question...
What system (or techniques) to defend hand2hand against a single street attacker for a typical adult woman or senior citizen who is say 70-80 years old? A mugger who attacks you.
Logic dictates such techniques should not be based on physical strength, size, physical conditioning, stamina, lengthy learning curve, etc. The usual thing of mastering the art takes 10 years...
Question...
If whatever techniques are good for the above class of weaker individuals, why are they not good for younger, physically strong individuals?