I think what he meant was that most men wouldn't care about how well a woman writes. But yes, I do agree that how someone carries herself is very important, not just in relationships but in life in general.
I can't say for anyone else, but my parents essentially planned the lives of my sister and I before we were born. As I wasn't born male and hence able to carry the family name (much to their disappointment), they envisioned us to be the Soong sisters of modern day Singapore. They pretty much decided the schools we would attend, the hobbies and interests we would pursue, the friends we would make, the boys we would date, and the jobs we would have. Everything was specially curated. If you played by their rules and met their expectations, then you can get whatever you fancy. If not, then you will be regarded as being insolent and be treated as a delinquent.
I guess growing up I was lucky in the sense that I never had to worry about not having food on the table, a roof over my head, or not having a conducive environment to study. My parents enjoy the finer things in life, and introduced it to us at an early age.
In regards to social circles, it really depends on who is in it. There are some, usually the nouveau riche, who love turning any conversation into a brag. Like how their maid broke a plate, so they had to specially fly to Florence to buy a new set of Richard Ginori plates/dinner service to replace it. Or how they needed to send several of their Birkins to Paris for spa but didnt trust the local Hermes boutique to ship it properly. So they had to book the whole column of Business Class seats so that they can store it in the entire column's overhead compartments. They also made it abundantly clear that the only reason why they didn't choose to fly First Class instead was because First Class/Suites does not have overhead compartments.
For those who come from old money, they usually try to downplay their wealth, or even actively hide it. They usually try to act normal, but you can discern their socioeconomic status from some of their inadvertent slip ups. Like they say; money talks but wealth whispers.
Essentially by trying to live my life on my own terms instead of having my future pruned by them.