No it's not. As I said I have teens myself and her voice and her voicce and behaviour seems like a teen (reminded us of our own teen girl). I have seen a 30+ FDC has a large soda too but they are usually a bit more discrete about that - not putting it in a place where it is clearly visible by guests (behind the counter or something).

I don't think there was any night auditor at the hotel that evening as she said she was the only one.

Our impression was that that girl was working as a stand-in for someone that she can't even move us to another room because we only stayed for one night. This was the first and only time we encountered this. We have had rooms with issues and were able to move room even for 1 night.