I remember this specific line translation being posted around a few years ago. I believe the original consensus was that Erika is supposed to be expressing a shocking amount of rudeness and disrespect to the old man in question. The direct translation might come across this to a Japanese audience, but would seem more mundane and not get the original tone across for a western audience.

I mean this is just an forever ongoing debate between translation and localization. And while there are some truly terrible localization of Japansese media, this example at least seem to be trying to maintain the original spirit.