[Nyororin]

The first thing 子 makes me think is "girl" - definitely not "child". In the same way, 郎 makes me think "boy". It`s just traditional gender naming.
Most people don`t really care what the kanji used in names mean unless it`s a really unique or strange meaning... In the unique case, because they won`t be able to read it at a casual glance - and chances are they`ll only notice the meaning because they`ll wonder what possessed your parents to use them in your name.