I have always liked drawing on paper, though I'm not quite good at it. I've seen others draw on all different types of materials.
Drawing is a great activity that is low cost and encourages creativity. I am no artist but my kids are great at it.
My kids scribble, they are young. I prefer using pencils so I can erase, and of course they love crayons.
There are so many kinds of drawing. Sketching is trying to copy a person or object. Then you have the lampoon artists that exaggerate features.
Sketching is more just freehand not really finished pieces. I do not like caricature drawings.