Babies learn to walk between 9 and 18 months. That's a really large window. Most learn at about a year, but a few occupy those fringe positions. Imagine if we sent babies to school to teach them to walk. Imagine the hassle of trying to make kids learn to walk before they were ready, and the hand-wringing over all of the "under-performing" babies. All of that time and effort would be spent to get kids to walk just a couple of months sooner. Just picture how wasteful this would be, since by two years you can't tell the difference between the early walkers and the late walkers. This is public
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