Australia or Hong Kong?

We told Domu and Pia we will be moving to Australia in December.   (Both of them we know prefer Hong Kong).

Domu : Are we coming back to Hong Kong?
Me: No.
Pia: But we want here in Hong Kong
Me: Why?
Pia: (Trying to find a reason) Because there are many c*ps here.  (I could not figure what she meant)
Me: c*ps?
Pia: Yes, there are many c*ps here.  There are no c*ps in Australia
Me: Oh, cups?  For drinking?
Pia: Yes.  And we will be tired if we go to Australia.