An ex with commercial kitchen experience taught me this. My own experience is that, having held and used a knife the right way even once, the wrong way feels wrong forever after.
Tell that to my wife and in-laws. They’ve asked to be taught, been shown how to do it, shown why it’s safer and faster, have timed their speed and found it to be faster.
They still refuse to do the proper technique. They cut themselves regularly. Their stubbornness knows no bounds. Even when it involves literal blood at least once a week.
It isn't just about the grip. The stance also matters. I had trouble using a knife well for a long time because I would position myself parallel to the cutting board, which meant I would bend my wrist when using a knife.
Once I realized my wrist should be straight when using a knife and adjusted my stance to be slightly angled away from the cutting board, my knife skills leveled up a ton.
