'Mummy how could you not?' Princess Charlotte asks Kate heartbreaking question

Kate revealed in an interview on the Happy Mum, Happy Baby podcast what George,

eight, and Charlotte, seven, have asked her before leaving them to carry out a royal visit.

Asked by presenter Giovanna Fletcher if she struggles with mum-guilt, Kate

said: "Yes, absolutely. I think anyone who doesn't as a mother is actually lying. Yes, all the time.

Even this morning before I went on the nursery visit, George and Charlotte said

Mummy, how can you possibly not drop us off at school this morning?'. No, [Mum-guilt is] a constant challenge.

You hear it time and time again from mums. You're always questioning your own

decisions and your own judgements. I think that starts from the moment you have a baby.

I feel huge responsibility. What I've learnt over the last few years is so fascinating.