Any name can be used regardless of whether a family member or friend have used it. I have 2 sets of cousins with the same name - it is just good taste Your friends may not be the same 10 years from now and your new friends may have a child with the same name. I am sure you wouldn't reject a friend based on the name of their child being the same as theirs??

If you love a name - use it. If people get their knickers in a twist that is their problem.