For shoelace knots, the difficulty also matters. I recently about a shoelace-practice book [1] for my 4yo daughter. This book shows a couple of ways to knot, a

For shoelace knots, the difficulty also matters. I recently about a shoelace-practice book [1] for my 4yo daughter. This book shows a couple of ways to knot, and one of them, called "bunny ear bow" [2] is easier than the traditional "double-loop". I hope these knot-inventors pay more attention to the ease side so that kids can start knotting by themselves earlier. That could be thanked more than inventing a tricky-but-fast methods for adults. [1] https://www.amazon.com/Your-Shoes-Cottage-Door-Press/dp/168052318X/ https://www.amazon.com/Your-Shoes-Cottage-Door-Press/dp/1680... [2] https://www.news24.com/news24/southafrica/local/hillcrest-fever/the-easy-bunny-ears-method-of-tying-laces-20160530 https://www.news24.com/news24/southafrica/local/hillcrest-fe...