A few days ago, I set my 3.5-year-old son up with some cucumbers, an Opinel knife, some fish sauce, some vinegar, and a bowl. The cucumbers were not evenly sliced, and he was overzealous with the fish sauce, but it worked well enough as a side dish, saving me five minutes of time. It wasn’t busy work; I really needed my time freed up, and I judged him capable-ish of handling the responsibility. and uses a small vacuum to attack clumps of dog hair before we host friends for dinner. Amazon packages are his magnum opus—he gets that Opinel knife out and stabs them as soon as they come.