there are parts of growing up poor that "stay with you"
So I have basically the male equivalent of "resting bitch face", people often tell me I look "serious". But the flat face/permafrown is like a passive thing at this point. It's just like my "default" facial expression and I don't even realize I'm doing it since the facial muscles and muscle memory have been in the flat/frown position for 30+ years
For context I am in my late 30's
When you grow up very poor under a violent alcoholic dad there just isn't much to smile about. And you also get a good serving of learned helplessness and a mild case of PTSD from routinely overhearing domestic violence/loud arguing in the kitchen and dad having random violent fits where shit gets thrown against the wall and such. Thinking back on it I suspect my mom babytrapped my dad and he was never really interested in being a father in the first place - because he would regularly belittle me and my two brothers, undermine our self-esteem, tell us we would never amount to shit (this is so bad to tell kids), etc
Growing up poor can definitely affect your mental health and demeanor/outward appearance in subtle long-lasting ways (in my case with the permafrown anyways) as a sort of "side effect". Over the years I have noted that middle class to upper middle class classmates from my past just look different even at first glance - their facial expression is typically in the neutral-to-friendly smile range (...and of course, they typically have great teeth due to their parents being able to afford regular dentist visits growing up), they seem to have more "life" in their eyes (it's hard to describe), they carry themselves with more confidence, they have good self-esteem, they have a more positive/upbeat attitude when you talk to them, etc
Anyways, I see a lot of posts discussing the "numbers" aspect of poverty (struggling to afford bills, having to choose between groceries or rent, etc), but there are also these other "subtle" long-term effects of poverty that don't get mentioned nearly as much