In the clip, the Duchess acknowledged 2020 has been a “hugely challenging year.”
Kate said: “Earlier this year, we asked you give big questions about raising our under-fives.
“We wanted to hear what you think about the importance of the earliest years of our children’s lives.
“More than half a million of you answered that call.
“So we have taken your input and combined it with even more public research, to produce the UK’s biggest ever study on the early years.
“This year has been a hugely challenging time for us all, and there hasn’t been a more important moment to talk about families.
“Later this week, we will share five big insights we have discovered and I’ll take your questions.
“This is just the beginning, and I want to thank you for starting a conversation because we are all on this journey together.”