The metric system is better and more organized than the weird feet/inches thing we have. However, I don't like it for height. It's weird to say you are 172 centimeters tall, because that seems really large, or 1.72 meters, because that's a really small number. I Feet/inches is more precise for height/length of people and small things, while meters/kilometers are better for long distance, like height of a building, depth of a pool, or travelling distance. idk tbh why can't we all use metric, or find something else that is better than both.