My option :

@Child (6 years old) surprised with knowledge: "That's why people invented tablets, machines invented all kinds, mobile phones invented, and children are still born through the letter?"" And what to answer?

In spite of all his stupidity and impotence, except for the isolated cases, man is a too complex creature. Our civilization has not yet reached the level of mastery of nature and has not yet learned to recreate in laboratories all the processes going in it. But we can help them a little. And then you can tell about Caesarean, about queries and caring for children born much before the deadline.