I know this thread is quite a few years old now but I'm wondering if it still represents opinion.
I am a professional who works with teachers, parents, paediatricians, allied healthcare teams etc and without exception, they use 'mum' whenever talking about a child's parent. It's not even "Johnny's mum says that..." or "Johnny's mum would like..." - just "Mum says that."
I think it is incredibly rude and patronising but I appear to be shouting into the wind when I mention this to fellow colleagues. Incredibly, I also see it written in official reports and letters and think it's even worse when others are named, such as "Jane Doe, Senior OT, reported that Johnny is doing well, but Mum says that he is finding things difficult right now."
AIBU to think as I do?