One thing I didn't realize my child needed to know...
When my son started kindergarten I thought he was beyond ready. He knew his letters, his numbers, he could even read small words! His hand writing wasn't great but he was trying.
No one told me I should work on his cutting skills with him. He just never needed to use scissors before then! He was so frustrated when it came time to do activities that involved cutting. I felt like an awful parent, lol.
What is something you just didn't realize that your kiddo needed to know going into kindergarten?