If your kids have a cheap (Usually part of a pack) cricket bat, it's likely made from Kashmir willow; any serious cricketer goes for English willow. It has better grain density and structure, leading to less vibrations and a larger sweet spot
English willow is a much softer wood which offers a lot more natural stroke and 'give' when striking a hard cricket ball. This willow tends to help develop the right technique where timing the strike of a cricket ball becomes essential.
