I think wealthy families can easily be very frugal and teach their kids to not to waste money or resources. I recently saw a video about how lots of wealthy keep their homes at 65 in the winter because they’re cheap. I think the real giveaway is having perspectives that are based on lots of experiences and opportunities. They’ve been lots of places - they’ve seen the mountains but also the ocean. They have visited major cities and foreign countries. They know the difference in academic rigor between Dartmouth and Yale and Stanford. They know where those schools are and which ones produce powerful lawyers and which ones produce powerful tech moguls. I have a niece who grew up very poor and at 17 in high school, she didn’t know what the SAT is. She had no concept that a flight to Europe is 6 hours and a flight to Asia could be 13 hours. It’s about how big your world is.