The advantages of coloring pages:
1) Self expression - coloring on a blank "canvas" (piece of paper), is a way for children and grownups alike to reveal themselves. You can inform a lot about the way an individual is feeling by the images that they draw, the colors that they utilize, etc. It is very important to offer children an opportunity to reveal themselves, and not all children reveal themselves through words and through writing, many usage art.
2) Color acknowledgment
3) Therapy - for many individuals (myself included) coloring is healing. Regardless of whether it's scribbling, or coloring the "finest photo ever", coloring can be a way to de-stress, after a busy early morning of school work, wind down, and calm down, 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 first knowing how to hold a crayon. The small muscles required for penmanship later on begin to be developed while coloring.
6) Building motor abilities
7) Focus - Taking notice of a single job for a length of time is needed for coloring and for all sorts of things throughout one's life.
8) Borders - Another thing that children gain from coloring pages, with preprinted photos on them, is how to accept limits. While a toddler or young child may doodle all over a coloring sheet, without any regard for the limits (lines on the coloring page), as the child gets older, they will begin to respect those lines, and make an effort to color between them. While I motivate blank paper coloring totally free expression as often as possible, for many preschoolers pre-printed coloring pages are their first exposure to printed limits. This early exposure to limits in print, will be a substantial aid when handwriting time occurs, and the child needs to respect the limits of the preprinted handwriting lines on the paper.
9) Milestone - This is the last little "importance" of coloring that I will mention for now, which is that coloring in the lines is a turning point, a sense of achievement, the initial step towards a successful scholastic profession for many children. For many children coloring in the lines is just as crucial as counting to 10, counting to 100, reciting the alphabet, learning the reproduction truths, etc. It's a turning point that says "yes I can" do whatever I encounter, and it offers children with pride, a sense of self worth, and helps them to feel accepted in a society that is often fast to judge, and slow to respond. This sense of achievement will carry them through life, and help them not to quit so easily, when something brand-new occurs.