We originally acquired our Legos as a mass chaos set from a yard sale. Some of the pieces date back to the early 70s (yes, I Googled this). So the kids started with no scripts.
They got a couple of set kits over the years, which were built once and admired for a while. Never played with a la dollhouse--they use plastic/stuffed animals and Playmobil for that (DD has also never played with dolls). In one case, the set bricks are still separate. All other kits joined the mass chaos set.
They build absolutely nutty, bizarre contraptions, but the joy is in the construction. I have a rule (sometimes relaxed) that only one construction per kid can be left on display at a time.