You never played with Legos, did you?
Not all Lego sets even have instructions; they're just bricks to be assembled as people see fit.
Those sets that do have instructions sometimes have multiple instructions, allowing people to build the same set in multiple fashions.
This is all presuming, of course, that people even bother with the instructions in the first place.
Most Lego sets usually come with extra pieces. What I do is assemble the set as per the instructions first, both to see the general concept behind the build and to see what pieces are, indeed extra. In some instances, I like a build well enough as it is, and the parts go in the parts pile for other builds. In other instances, I take the design and tinker with it, using a mix of spare parts and parts from the parts pile to modify and adjust things as I see fit.
In a few instances, I'll take some pieces from the parts pile and hammer something together based on nothing more than my imagination. For example, I took some wing pieces and a few other bits I had left over and created a little "Transformer" figure. The wings "transform" into the arms (re: they clip onto the sides of the base), while the nose "transforms" into the feet (ditto); the rear defaults into the face.
I'm not alone in doing this; I'm on a toy collector forum, and some of the other Lego collectors operate in the same fashion.
So for you to deride the concept of "organizing from nothing" and "playing with Legos" tells me that you owe your inner child a long-overdue apology and a trip to the toy store. I'd recommend starting with a set from the "Creator" assortment.
