Final answer:
To start a blunt haircut, you begin at the back of the hair, establishing the length and creating a foundation for the rest of the cut before moving to the sides and front.
Step-by-step explanation:
When beginning a blunt haircut, you typically start at the back of the hair. This approach allows for a more controlled and even cutting line as you work your way to the front. The hair at the back forms the foundation for the length of the haircut, which is crucial in a blunt cut since precision is vital to achieving the look. After establishing the length at the back, you can then proceed to cut the hair at the sides and eventually at the front, ensuring that all sections are even and match the baseline created at the back of the head.