system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are humans sympathetic toward a crying animal, but find crying children annoying?

Shouldn't my animal instinct be to help the child?
gpt
One theory is that the child's cry is meant to induce a sense of urgency. Puppies have no reasonable expectation of human help, but babies do. So they can skip being pleasant, and get right to being urgent.

Another theory (unproven) is that there is an evolutionary advantage to a baby making life unpleasant and sleepless for its parents for a year or so after being born: it makes the conception of a new sibling less likely because the parents will be too tired and crabby to have a lot of sex.