When I worked on a labour ward, I frequently had to bite my tongue at some if the names that I heard for the new baby. Quite often, my response had to be a non-committal, “How unusual”, or a Mrs Brown-like, “That’s nice”!
Ida Mary Rose, in Wales, Dylan is a highly respected, if somewhat frequently encountered, name (viz Dylan Thomas).
In our part of Wales, it was quite usual for girls to be given Grandma’s name as a first name, then be known by the second name. Otherwise, if turning up at a family gathering, all the girls would answer to the same name. I have 5 girl cousins, so you can just imagine. However, the concept of using your second name does cause hassle, especially when filling in forms asking for your first name, when my signature is my second name, or people calling the name you don’t answer to, eg when coming round from anaesthetic, or sitting in dentist’s waiting rooms. Compounded in my case by using my maiden name for most things, and my married name only for family things. I have been known to sit in doctor’s waiting rooms while the receptionist calls for me by by first name and married name, neither of which I respond to!