The normal age to stop using months is 2 years.
That's because there's a massive difference between a 12, 18, and 24 months old. It makes sense to have and use different references to separate them.
The normal age to stop using months is 2 years.
That's because there's a massive difference between a 12, 18, and 24 months old. It makes sense to have and use different references to separate them.