That's quite a back story

E was playing 'vet' the other day, and someone brought her a patient and she said, "Oh good, money, money, money!"

And S said, "You don't need money, you're a vet!"

E replied, "Well, I'm still living in my parents' basement, so I need to get enough money to buy my own house."

When did socio-economic concerns enter into schoolyard games?