I have a very old friend (of 20 years, we met when teenagers) who is my DS1's godfather. DS1 is 15 this year. My friend had a facebook chat with DS1 last night - I only know about this because my son told me - where he said he was sorry for not being a very good godparent, and if DS1 wanted to chat to him any time, he could. And that if he wanted to talk about any issues with his parents (us!) or anything, then he would always be there to listen. Friend has only met DS1 a handful of times since he was very little.
DS1 told me and said he thought it was a bit weird, and that my friend seemed to want him to "open up" about his life and particularly any issues with us as parents that he didn't feel he could talk to us about. Well, I assume he hasn't got any as he told me all about this message conversation, and seemed to find it quite funny.
I don't even know why I feel a bit uncomfortable about this, so maybe that means I am, in fact, being unreasonable.