I have noticed on here that some nickname type names seem to be seen as not substantial enough to be 'proper' names - examples that spring to mind are Molly, Ellie, Millie etc. However, others which are also shortened versions of other names seem to perceived as ok - Katie, Sophie for instance.
Can anyone explain to me why this is? I genuinely am interested to know. I ask as I really like the name Cassie but don't want to give DD an 'insubstantial', nicknamey name and don't like the longer versions like Cassandra etc. Thanks.