Don't know if I could be classed as using a friends' child's name. A good work friend's DD is also named Maggie, but she is 17 years older than my Maggie. As most of our conversations revolved around work and friends, not family, I had not thought about her daughter when picking a name.

It so happened that we were discussing names and mentioned that I liked Maggie. Luckily she, of course, thought it was a great name and agreed we should use it. It never came up between us about copying or stealing. She is the type of person that if she had an issue she would have said something. Considering that only catch up occasionally I don't think having the same name matters, especially with the age difference.