When you dress children, you can push the envelope a little. Something that would look odd (if not "woo, that lady's cuckoo") on an adult can be acceptable (possibly even "cute as a button") on a child.
...But if you don't set some type of parameters, you might end up pushing that envelope right off the side of a cliff.
Allow me to present the Chicken Dress as a case in point:
Now, before you squeal with delight and run off in search of the pattern, ask yourself-- how many occasions in a child's life really call for a Chicken Dress? (See? I just saved you a lot of time and trouble. You're welcome.)