why do we refer to infants above a year in months?

Question

For example we refer to infants over a year as 13 months, 16 months, 24 months, etc. Is there a reason for this convention?

In: Biology

Answer 1

Because there’s such a large amount of development at such a young age. There can be a huge difference in a child of 1 and a child of 23 months. The former may not even be able to stand yet and the latter can be running around and holding a conversation with you.