Why do most women get their first period around age 12 when their bodies are usually not well developed enough to safely carry a baby to term?

Question

Why do most women get their first period around age 12 when their bodies are usually not well developed enough to safely carry a baby to term?

In: 12558

Answer 1

You could also wonder why humans are among the few species whose newborns cannot survive by themselves during months, if not years. I believe it’s just because there isn’t evolution pressure against it.