I know the age of child/kid is 5 to 12 years old because a baby is 0 year old and a toddler is 1 to 4 years old and a teenager is 13 to 19 years old and an adult is 20 years old
Please everyone, keep calm.
As mentioned in the game description, the recommended age for the Kid Mode is 3 . Toddler is generally a term used for 12-36 months children (source: https://en.wikipedia.org/wiki/Toddler). Thus, “kid” mode seems more appropriate here to me. “Child” mode could be an appropriate alternative, but I preferred “kid” for no specific, nor scientifically accurate, reason.
Thanks everyone for participating this very important discussion.