The nature of your environment is how you gauge reality. It's why people who are raised differently see things differently quite often.
I was sitting at a regional airport yesterday, waiting on a flight to Chicago. The flight was delayed almost 3 hours, but about 5 minutes after the door would have been closed otherwise, this young college girl runs in and is having a hissy fit, she just jumps ahead of about 5 other people in line to the counter, and she's frantically going on about being late. She's wearing just thin shorts and sandals. Once she finds out the flight is delayed, she starts talking about having lost her phone, then how she's hanging, then asks to borrow someone's phone and calls a friend. She talks so loud everyone can hear her, and she's going on and on about being blacked out, not sure who she slept with, worst day of her life, how her Birkenstocks are now muddy, etc... talks about vodka and tequila and so on. Meanwhile all the women sitting around me are talking to each other about this girl, and everyone there, I think, except this obviously privileged little seems to think this girl is not connected with the same reality as the rest of us. It's like a Housewives show (so I've heard). The concept of being raised differently (older working women vs young, probably freshman college kid) means they see reality differently. So to them they are living in a different reality.
I didn't mean to suggest reality itself changes.