My youngest started toting her sling a few months ago and shes just over a year now. My oldest just turned 5 and loves her sling as well. I got them each thiers when they started playign with thier babies. I think since I sling its just natural to my kids that, that is how you carry a baby. too darn cute as well
Fallon got her first pouch when she was about 9 or 10 months old. It was before she could walk, and she wasn't super interested in it to tell the truth. It's just lately (she's 16 months now) that she really "gets" it and enjoys it.
My mom made dd one for christmas this year. She was 23 months. I think she would have enjoyed it even earlier (18 months?). She still needs help putting it on, but once it's on she will wear her babies for hours while she goes about the business of her day. Just like mommy !