I've been discovering that with my own son (soon to be 9). He is starting to get really hooked on his screen-time (mostly watching YouTube videos about Minecraft, a video game) and it sort of dawned on me that there is not enough around here to keep his interest, and when he's bored, he defaults to the screen. (much as I might wish he defaulted to reading a book) So I determined that I am going to get him OUT of the house more often and, now that he is getting older, keep upping the complexity of the kits & stuff I buy for him, so he's always got something new and interesting to do.
Same with my 10 yo. Screens are his default if nothing else is around. And, like the OP's ds, my guy is the dependent interactive sort who likes to do things with someone. But he's a little older and becoming better at doing things on his own. He'll even read a graphic novel to himself if I pick up something good. So strewing things and rotating toys are helpful and I try to get him out at least a couple of times a week. It takes being proactive on my part and making sure I don't get lazy with looking for activities and opportunities for him. And now, after taking him out all afternoon, he's going to spend the evening in front of the computer while I go to work for a few hours.
My ds is very hooked on screens, always has been, and he's definitely not the type to entertain himself. Taking him out is not an option -- he fights it tooth and nail for the most part (we worked out an agreement to go out every other day, but on the days we are supposed to go out he usually tries to get out of it). We live in a small apartment and I am not good at organizing things and everything is a mess (we moved from WA to CA back in Sept. and a lot of boxes, many of them containing his toys, are still unpacked and under a pile of other stuff). Not sure what we can do at this point.
Jen 47 DS C 2/03 04/29/08/ DD S 10/28/09 DH Bill '97.
mighty-mama and her sister Kundalini-Mama