Do kids in Stardew ever grow up?

Do kids in Stardew ever grow up? Children never grow up past the Toddler stage (Stage 4). You will have the option to acquire a second child only after the first child has grown to the Toddler stage.

Children never grow up past the Toddler stage (Stage 4). You will have the option to acquire a second child only after the first child has grown to the Toddler stage.
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