For a bit of backstory me and my daughter (14) are from a working class or lower middle class background and live on our own in a council flat - it's done up nicely, the community isn't dangerous, and we're happy here.
My daughter recently made friends with a girl a year younger (13) - let's just call her Anna - she's very quiet, but seemed nice. Dd has been to her house before - it's a more middle or upper middle class area.
It was DD's birthday a couple of weeks ago but she decided to celebrate last weekend so she wouldn't have exams on her birthday. She originally wanted two girls from her own year to come over, but instead decided to invite Anna. When I suggested inviting all three girls over she said no, which makes me think Anna doesn't get on with DD's other friends.
They went into town on their own on Saturday, and since I was already there I decided to collect them. When I first spoke Anna nudged DD about my "girlo accent" (?) As soon as we walked into my estate Anna started quoting what I later found to be a meme, claiming she was "in the ghetto." I also overheard Anna later that night telling DD that she was glad that DD's "chav friends" weren't invited. This especially stuck out to me because I haven't heard anyone say "chav" in Ireland since at least the 90s, and even then it was never commonly used, so she likely heard the term on social media.
Am I overthinking this?