It's less "actively hiding" and more the result of natural lifestyle choices. I am comfortable in a "normal" life, without lots of fancy trappings, without showing off or preening about. So we chose a "normal" neighborhood, because that fit the way we wanted to live. It's a pretty typical old-fashioned Americana neighborhood -- you can walk everywhere, there's a little "downtown" strip, the houses are nice but not fancy, the public schools are IMO great but not always ranked as highly as I think they should be, people are basically teachers or engineers or nurses or government workers and drive later-model Japanese sedans or minivans (and drive them for a long time), etc. The difference is that we make at least twice as much as the people around us; we are living well below our means, while they are living closer to theirs.* So just the very fact of living that lifestyle for a couple of decades made us wealthy, simply because it meant that we had the opportunity to save so much more than everyone else around us. As a result, we are neither actively "hiding" nor "flaunting" anything; we are just living the lifestyle we want.**
I do hide the details from my relatives, though. Part of that is the old Midwestern values of "you don't brag." And part of it is that most of my relatives are not doing as well financially as we are, and I want to have good relationships with them, which would not be possible if they thought I was lording it over them. They can guess based on our jobs and lifestyle that we're doing well, but we just don't talk about it -- but also, really, how often would that come up anyway? Strikes me as a massively boring topic of conversation. I am more likely to discuss ideas (e.g., the concept of FIRE, the Shockingly Simple Math, etc.) than specifics, because that's much more interesting anyway.
*Because we live in a prudent, responsible area, I am confident that most of our neighbors have an emergency fund and fund their 401(k)s at least to some degree. ;-) They are not the type to fund an extravagant lifestyle with consumer debt.
**In fact, the biggest concern I had about buying my StupidCar was that it would set us apart from our neighbors. I was afraid it would look like showing off and single us out as braggy entitled twits. But then I thought, you know, I never really cared when other people thought I was poorer than I was based on my clothes or cooking at home or whatever, so why should I care what they think now? Besides, they probably think I am drowning in debt to pay for it. ;-)
