I like that they didn't just unfurl the scroll of acceptable royal names and choose one off the small list. Archie as a name will fit right in at school, uni, etc. Wise of them to eschew the title knowing that the public would prefer a thinned out monarchy (I know many would prefer no monarchy of course).
Harrison isn't a name I particularly like but it's cute to have the "son of harry" element.
Harrison isn't a name I particularly like but it's cute to have the "son of harry" element.