These kids were in South Africa, and probably couldn't have found Wales on a map. They rejected it because they'd never heard it before, and it was therefore wrong! This was very much their approach to anything outside their limited little world, poor things. They also assumed that it must in some way be posh or pretentious, as if a Smith called herself Smythe and insisted on having it pronounced smaidh. Young Annwen was quite right to duck out of the issue, unfortunately: it would not have had a happy conclusion!