Final answer:
A manicure typically begins with the client's less-used hand to keep the dominant hand free for longer, aiding inconvenience. Fingernails play a protective role and assist in sensing the environment; their health can reflect a person's overall well-being.
Step-by-step explanation:
A manicure is usually begun with the client's less-used hand because this allows the more dominant hand to remain unencumbered for as long as possible, which may make it easier for the client to use it if needed during the process. As both hands will eventually be treated, starting with the less dominant hand helps to minimize any inconvenience that might arise while the manicure is underway, particularly since the dominant hand is generally used more for tasks.
Fingernails act as protective plates and aid in sensory perception due to the high concentration of nerve endings beneath them. The health of nails can be a quick way to assess a person's oxygen saturation and overall health. It is therefore important to maintain proper nail hygiene and safety during manicures or pedicures, given the potential health risks associated with unclean practices in nail care.