I’m pretty sure I read before that he is a trader at Credit Suisse, they are absolutely not middle class
It does explain a lot about how she feels all her posts are really relatable, if she does genuinely think she’s middle class!
She is middle-class, potentially considered ‘upper middle class’, due to her familial income if her dad is a credit suisse trader. But firmly middle class - the spectrum of which has expanded massively over past decades.
Class divisions in the UK aren’t defined by wealth at all - it’s on social mobility, your peers, and how you’re perceived externally. You can live an incredibly wealthy life and be working class - likewise you can be a member of the aristocracy and not have a pot to piss in.
‘Upper class’ is still based on traditional peerages / land ownership / connections / relations etc, often going back generations. It’s why it’s so fucked - there’s literally no way to enter these small circles unless you’re born into it, and the advantages and connections available here are never going to be accessible to others through hard work alone. Maybe that is what her family grew up with, but it’s unlikely.
Sorry to sound like a sociology essay! But if we start defining class by wealth alone, we overlook so many nuances which make up how someone’s class is perceived and the privileges they may or may not benefit from.