What is a benefit of using clippers with cutting guards of various lengths?

Using clippers with cutting guards of various lengths allows for flexibility in achieving different hair lengths simply and efficiently. This means that a stylist can easily adjust the guard to cut hair to the desired length without having to switch tools or use multiple techniques. The guards provide a quick way to create uniform cuts while also maintaining versatility for various styles.

The other options do not provide the same level of clarity on the primary advantage of using clippers with guards. While creating a gradient effect is possible with clippers, it often requires more advanced techniques and skill, making it less about the guards themselves. Reducing the need for shears is not a primary benefit since shears are still essential for specific styles and finishing touches. The cost comparison to traditional tools is irrelevant to the functional benefits offered by the guards.