Final answer:
The United States does not use the metric system in everyday practice, despite legally adopting it. Historical connections and the cost of transitioning have hindered its implementation.
Step-by-step explanation:
In the United States, the metric system is not used in everyday practice despite being legally adopted for measurements. The metric system is more commonly used in science and is adopted by most countries around the world. One reason for the United States' reluctance to fully adopt the metric system is its historical connection to the British imperial system. Additionally, the cost and effort required to transition to the metric system on a national scale have also played a role in its lack of implementation.