Nah I think it's still applicable to some countries not only in the 1st world countries. I'm in middle class living in the PH, and based on my experience there's still people would spend a lot of money for foods just to prove that they could afford it, despite the financial status. Yeah of course they would post it in social media to show that "We and my family ate in this expensive restaurant", of course I know that person is not that financially stable since he's asking to borrow some money for me sometimes. I think the problem here is the comparison to others or they don't like to be judged that they couldn't afford such expensive restaurant. Maybe occasionally is fine but bruh spending all of your money to cafe, fastfood and restaurant usually would make you broke.