I actually think it's a great idea to think through ways to make your wedding more engaging for the little ones. And coloring is certainly a popular activity.
But their coloring pages were essentially propaganda for the Wedding Industrial Complex. Each page depicts a scene from a "classic" wedding and includes a description:
Traditionally the Rehearsal Dinner was paid for by the Groom's Family and was only the immediate wedding party. Now, out of town guests are often invited.
The reception that follows the wedding and is often a sit down dinner, but some have a buffet.
"Traditionally"? What about the actual tradition of throwing a potluck wedding? And what about the people who want to spend more time with all of their guests so they host a Welcome Party? Or what about the people who want to spend their time with only their immediate families before the wedding and skip the rehearsal dinner altogether? What about the people who serve food family style or decide to serve cupcakes and champagne rather than an entire meal?
I don't take issue with any of these components of a wedding. Couple should pick and choose (and modify and replace) to create a wedding that is meaningful and memorable for them. And I understand that these coloring pages are based on the "average" way of doing things at a wedding.
I do take issue, however, with feeding our children cookie-cutter images of what a wedding is. The more we do this, the more "average" becomes "normal." The implicit message of these images is: "A real wedding includes a bouquet toss. A real wedding unites a man and a woman. A real wedding happens at a church. A real wedding has a flower girl and a ring bearer."
A real wedding is about community, connection, and commitment (and, for me, fun!). That can look however the heck you want it to look.