It's really amazing just how many people cannot even fathom that others do not have the familial safety net and have been working to support themselves from an age where said people were just starting to think about what school to go to. For many, until they've lived on the razor's edge, they simply do not have the mental framework for understanding what living that way does to people.
Edit: I'd also add that for those of us who have seen the other side (I was upper middle class from 0-9 years old, fell into poverty after and lived that way until my early 20s - riches to rags sucks. Badly. Read all about it here if you're curious: https://medium.com/@opirmusic/why-software-developers-should...) we know what the other side is like. We've seen it. We know what it's like to never worry about transportation, decent food, school supplies, books, tutors, spending money - and the ever-present implicit safety net. We saw our parents' friends go on vacations, buy multiple cars, live in huge houses, etc. So anyone, anyone who says it isn't a huge advantage is delusional or lying.