To cut a long story short, my 15 year old sister has been unofficially "fostered" by her friends parents due to a huge family breakdown. This has been since roughly April/May.
My sister has just given birth and does not want to give the baby her surname (which is the same as her parents)
Her friends parents have been heavily encouraging her to give the baby their surname. (Trust me I'm livid)
Short of drip feeding, but can my sister even give the baby their name?