im the opposite situation...mine sometimes leave me alone for an hr or so and i get bored and go looking for them LOL...the girls(7,4 and 3) can play barbies in their rooms for up to 1.5 hrs (ive timed it....). The little man will follow me around from time to time, but then a bit of fluff on the floor, or something becomes more interesting.....
I think with age they may grow out of it...and who knows, you maybe become like me and start following them......