On a related topic, in my 40's, I am considering getting into dirt bikes for the first time in my life. I see them as as a useful tool to have in a crap hit the fan situation. I figure, in some cases, a bike will not cut it where a dirt bike will. For example, very hilly and rough dirt roads, a dirt bike will handle that like it is not there, while a mountain bike will give me an unwanted extreme workout.
A dual sport is the ultimate in poke around anywhere, anytime transportation. But, don't forget the risk factor inherent in a both the "fast and light" approach necessitated by the limited cargo capacity, and the hazards inherent to motorcycles (you are the crumple zone).