I also started riding at 39 (just last May)…I had ridden dirt bikes when I was a kid, but nothing since…even after 25yrs away, I picked up the clutch work right where I left off…I had a blast this past summer riding all over the place, driving my wife nuts talking about bikes…
The SuperMoto is an excellent choice for a first bike…light and easy to manouvre, durable for the inevitable “oops”…as for the Chinese bike thing…they have come a long way in quality in the last couple of years, so I don’t think it is a huge risk…I know the training school that I went to has a Konker that they are totally amazed at is reliability and durability…that reminds me, take an MSF course or some type of basic rider course…it will definately help avoid bad habbits and probably point out some tips on getting your license…
Anyway, have fun and enjoy the riding…
Later.