How do I know when a kid needs new shoes?
How do I know when a kid needs new shoes?
user
Can you tell me a bit about the kid and the shoes?
assistant
Just tell me in general
user
Sure, in general kids tend to get bigger at about a 1 cm per month, and the shoes will be too small within 6 months.  
Is there anything specific you wanted to know?
assistant
So you think we should change them every six months?
user