The point being made is that the English learnt by most students in (say) Greece isn't the real idiom spoken by young people in (say) Carmel-by-the-Sea Ca or Yadkinville NC. That's understood: beginners learn a simplified and "correct" version of English.
We don't really expect people on this website to rise to Roxxxannne's heights of imagination, but we can point out that in everyday speech "mom and dad" is more likely than "parents" and that words like "minimal" and "departed" are virtually unknown. In Greek terms they are katheravousa rather than demotic.
In my mother tongue, I also tend to unnecessarily use formal words, so maybe it is partly just me. π
You don't really need to say "before I left home", do you?
My folks didn't give me much spending money.
Doesn't that render the meaning vague? When and why did your parents give you that money? Was it right before you entered the bus so that you had some money during vacation? Was it weeks or months before your vacation, for another purpose, and you just decided or happened to save it for vacation?