Kate Middleton
Kate Middleton told one dad that Prince William struggled with fatherhood early on too. Pictured: Middleton visits the Hornsey Road Children's Centre on Nov. 14, 2017 in Hornsey, London. Getty Images/Richard Pohle

Kate Middleton is very open to sharing her personal struggles to encourage others as she works on promoting mental health.

On Tuesday, the Duchess of Cambridge visited Hornsey Road Children's Centre. There she met the parents and children whom the charity helps.

During the visit, Middleton met Billy, 39. Billy is a dad to 7-month-old daughter, Violet. According to him he has depression and has difficulty parenting his baby.

To make him feel better, Middleton shared how her husband, Prince William struggled with fatherhood too. "She was saying William was sort of similar and I just wanted to let her know how Family Action have been there for me and I think they need more support," Billy said (via The Telegraph).

"I was under mental health myself, I was suffering from severe depression and I thought I'm not going to let my daughter go into care, I'm going to step up and do this - I managed to turn myself around," he added. "I've been doing it from day one at the hospital, fed her her first bottle."

Aside from Billy, Middleton also met 6-year-old Nevaeh Richardson-Natiko. The little girl presented the royal mom with a bouquet of flowers. According to Richardson-Natiko, Middleton told her Princess Charlotte's favorite color.

"She asked me what my favorite color is," Richardson-Natiko who was wearing a pink party dress told the reporters after her encounter with Middleton. "I said it was pink and she said that's Charlotte's favorite color too."

Middleton is reportedly stepping in for the monarch. Queen Elizabeth is a patron of Family Action, a charity that provides services at the care facility that the Duchess of Cambridge visited. The center offers vital care and mental health support for parents and children. It aims to help families and communities across the U.K. by building skills and resilience and by improving their quality of life.

At the time Middleton and Prince William are expecting their third baby. However, another charity advised the royal parents to stop having more kids.

"We simply want the couple [Middleton and Prince William] to voluntarily choose to forgo another child," Anne Green, executive director of Having Kids said. "Choosing a smaller family is the single most effective thing we can do to solve humanity's biggest issues – problems like low child welfare, inequality, and a degraded environment. Kate and William could set the example."