The benefits of coloring pages:
1) Self expression - coloring on a blank "canvas" (paper), is a way for children and grownups alike to express themselves. You can tell a lot about the way an individual is feeling by the images that they draw, the colors that they use, and so on. It is essential to provide children a possibility to express themselves, and not all children express themselves through words and through writing, many use art.
2) Color acknowledgment
3) Treatment - for many people (myself included) coloring is healing. Despite whether it's doodling, or coloring the "best photo ever", coloring can be a way to de-stress, after a busy morning of school work, wind down, and relax, after the tensions of a day at school or work.
4) Grip/Control - many children find out how to hold a pencil, pen, marker, or colored pencil, by very first learning how to hold a crayon. The small muscles needed for penmanship later on begin to be developed while coloring.
6) Structure motor abilities
7) Focus - Focusing on a single job for a length of time is essential for coloring and for all sorts of things throughout one's life.
8) Boundaries - Another thing that children gain from coloring pages, with preprinted pictures on them, is how to accept limits. While a toddler or young child may scribble all over a coloring sheet, without any regard for the limits (lines on the coloring page), as the child grows older, they will begin to appreciate those lines, and make an effort to color in between them. While I encourage blank paper coloring free of charge expression as often as possible, for many young children pre-printed coloring pages are their very first direct exposure to printed limits. This early direct exposure to limits in print, will be a big assistance when handwriting time comes around, and the child needs to appreciate the limits of the preprinted handwriting lines on the paper.
9) Turning point - This is the last little "importance" of coloring that I will point out for now, which is that coloring in the lines is a milestone, a sense of achievement, the initial step towards an effective academic career for many children. For many children coloring in the lines is simply as crucial as counting to 10, counting to 100, reciting the alphabet, finding out the multiplication truths, etc. It's a milestone that states "yes I can" do whatever I stumble upon, and it supplies children with pride, a sense of self worth, and assists them to feel accepted in a society that is often fast to judge, and slow to respond. This sense of achievement will bring them through life, and help them not to give up so quickly, when something new comes along.