There are (or used to be fifty years ago when I studied a very modest bit of anthropology) so-called "primitive" tribes where no-one could read or write, but tiny children used sharp knives and knew exactly what term of respect to use toward their many and complicated relatives and the elders of their society. Children learn what it is important to know in their lives (and what interests them) If Velcro and elastic laces had never been invented, then tieing laces would be an essential skill.