Apple has been a status symbol for ages but the iphone made it undeniable. If you've been unaware of that just check out articles such as these:
"New research shows that owning an iPhone is the most common sign of wealth" (https://9to5mac.com/2018/07/08/iphone-wealth-research/)
"Why the iPhone Is the Perfect Status Symbol" (https://www.huffpost.com/entry/status-insanity-why-the-i_b_5...)
"The ‘iPhone Effect’: Are iPhone Users More Attractive Than Androiders?" (https://www.forbes.com/sites/traversmark/2023/12/30/the-ipho...)
As for identity, you may have never met an "apple" person, but it's absolutely an identity for many. It's a subculture (https://www.wired.com/2002/12/mac-loyalists-dont-tread-on-us...). People have called apple users "cult-like" and their devotion to the Apple brand a religion (https://www.jstor.org/stable/3712458). I have met people who were convinced that they couldn't be a "real" artist without owning Apple products (in one case the person was talking about ipods specifically, not computers or cell phones). The influence of marketing on Apple users can be extremely powerful.
As for expense, even in the US the majority of the population (60%) lives paycheck to paycheck and their standard of living is in decline. The high price of the iphone drove up the cost of other brands so the price gap is smaller at the highest end, but most households can't easily afford to get everyone a $1,000+ phone and android devices offer a wide range of prices and features for families who can't afford the top of the line. Even those that can will probably still get more for their money with a flagship android device. Apple users also have to pay much more for software (https://9to5mac.com/2023/09/06/iphone-users-spend-apps/) and that's not even counting the 30% extra apple charges for their cut of in-app purchases that's been talked about so much lately. Iphone users spend and have more money in general for a reason (https://www.marketingdive.com/news/survey-iphone-owners-spen...) and convenience isn't it.
That said, I agree that the perception of Apple being easier to use does drive sales and for people already used to Apple's weirdness there would certainly be a learning curve in switching away from the platform which encourages people to stay.