YOU SAID:

Kids are goat children therefore goats have kids.

INTO JAPANESE

子供はヤギの子供なので、ヤギには子供がいます。

BACK INTO ENGLISH

The child is a goat child, so the goat has a child.

INTO JAPANESE

子供はヤギの子供だから、ヤギには子供がいる。

BACK INTO ENGLISH

Because children are children of goats, goats have children.

INTO JAPANESE

子供はヤギの子供なので、ヤギには子供がいます。

BACK INTO ENGLISH

The child is a goat child, so the goat has a child.

INTO JAPANESE

子供はヤギの子供だから、ヤギには子供がいる。

BACK INTO ENGLISH

Because children are children of goats, goats have children.