Kate Middleton is advocating for the importance of childhood development.

She went to Leeds Kirkgate Market to talk about child development.

One man approached her and asked for a selfie, and she was friendly and gracious.

Kate has a personal connection to Leeds because of her family history.

She walked around the market, chatting with vendors and trainee teachers.

Kate also met with University of Leeds students studying childhood development.

Shaping Us is a campaign that raises awareness and encourages discussion.

As a mother of three, Kate is qualified to lead the campaign.

The campaign is significant because early experiences shape children's development.