How can a stylist determine the correct length when cutting hair?

A stylist determines the correct length when cutting hair primarily by measuring and visually assessing the length during the cut. This method allows the stylist to effectively achieve the desired outcome while ensuring precision and consistency. When a stylist uses measurement tools like a ruler or simply their fingers, alongside their visual assessment, they can see how the hair falls and make necessary adjustments in real-time. This combination of techniques is crucial for achieving professional results and meeting client expectations.

Following the client’s instructions alone may not provide the stylist with a complete picture, particularly if the client’s expectations aren't clear or if the stylist needs to adjust based on the hair's texture or growth patterns. Estimating without tools can lead to inconsistencies and potential dissatisfaction, as it lacks the accuracy that measuring provides. Additionally, relying solely on another stylist’s opinion might not align with the specific needs of the client, as different stylists may have varying interpretations of style and length preferences. Hence, the best practice is to combine measurement with visual assessment to ensure a well-executed haircut.