Earlier quoted context omitted.
I personally would feel quite ashamed to have the latest IPhone, I'd feel that I'd fallen prey to apple's marketing. I live pretty well with a 5 year old SE. For the same reason I refuse to wear visibly branded clothes and am not ashamed to buy some used items. Living frugally by choice gets you back some freedoms.
Certainly, but you're also a product of an environment which values that sort of self-expression. If every time you went and hung out with your friends they shamed you, saying you look homeless, you might think differently. Its certainly a sign of maturity to not really care about those things, but depending on your life trajectory different values will hit. And clearly, a lot of people value a new iphone. OTOH - its…
And the shaming part, I literally don't care what other people think about me in terms of these things. I dress with dignity, have good hygiene, etc so there's nothing guilting me about their expectations.