Kate Middleton's cancer: Wales “waited until the Easter holidays” to announce it to the children. “Children talk at school, that was their main worry” “Kate and William have done everything they can to protect the children, and have made sure that they do not know everything that is happening” “The best thing is to choose a time that is convenient for you and your family, that is to say a time when you can bring the children together if you have several,” reminds a psychologist listening to the League against Cancer.