A girl should be whatever height is natural and healthy for her. There isn't one "correct" height. Height is determined by genetics, nutrition, and overall health.
However, if the question is asking about what is considered an average or tall height for an adult woman, then, based on the provided reference, the following applies:
- Average Height: A height between 5 feet 3 inches (160 cm) and 5 feet 7 inches (170 cm) is often considered average for adult women.
- Tall Height: Women who are 5 feet 8 inches (173 cm) and above are generally considered tall in many regions.
In summary, there is no specific height a girl should be, but the referenced information helps understand height norms for women.