Gee Baby, Ain't I Been Good to You?

Gosh, I don't know where to start because there is so much to love about this video. Is it the fact that a bunch of senior citizens took out their instruments and decided to have an impromptu performance on a street corner? Is it the little boy who is instinctively, lovingly guarding his younger sister at around 0:53 - as they both look on in delight? Is it the elderly woman, clad all in green, carefully doing the soft shoe with an invisible partner? Or is it just because I love that old ragtime sound? But . . . maybe it's that this is Paris, and an afternoon here can take on the haze and beauty of all your favorite dreams. Le sigh.