I think that if breastfeeding is your "default mode", e.g. if you've seen many women breastfeeding, if children in your family have been breastfed, if your female relatives did, you "breastfed" your dolls, the conversations you overheard about babies when you were little and subconsciously learning revolved around breast rather than bottle feeding, etc etc, it's much more likely that you'll be au fait with the norms of breastfeeding, and come from breastfeeding as a point of reference.
I think that many problems start off because women are subconsciously comparing the way their breasts work to how bottles work, because bottlefeeding is their "default mode". So the whole worrying about breasts needing time to "fill up", talking about full and empty breasts, a real need to know how much the baby has had on a measurable scale, worrying that you might not have enough milk, thinking that if the baby is feeding often that means you don't have much milk, or concerns about hindmilk & foremilk, these all come from assuming (subconsciously) that breasts work like bottles which need to be filled up, can hold a set amount, and that amount is fixed, although it can be affected by various factors.
It's not even that simple - remember as well that most TV programmes show babies being bottlefed, most baby feeding dolls come with plastic bottles, most people over the last 50-60 years bottlefed, which means most people in your parents' and possibly grandparents' generation, they will have been influenced by this, shifting them into the bottlefeeding "default mode" and the baby-feeding assumptions related to this (comparing breasts to bottles). If they are of a particular generation, they may well have been told that formula milk is superior, that breastfeeding should be done to scientific "guidelines" (ie, on a strict routine) and that many women do not manage to make enough milk or "rich" enough milk. They may have passed this on to their children too. Many people, even if not you personally, are affected by this bottlefeeding culture.
So - even if you have had excellent role models and are laid back and know how breastfeeding works, consider that others who you trust - health professionals, friends, family, may well have been influenced by the bottlefeeding culture or their own background and experience and be set in a bottlefeeding default mode, making these comparisons which would never occur to you, or making worrying-sounding observations such as "She's dropping centiles" or "She's feeding a lot, isn't she?!" or "You must feed for X number of minutes to get the hindmilk" - and because you (most likely) live and/or have grown up within a bottlefeeding culture, these concerns start to sound quite logical. You don't think to look up how breastmilk production works, because it makes sense - it's only been ten minutes since the last feed, your breasts must be empty! That is why she is fussing! And she's not following the centile line and and and... and you get into a spiral of new-mum worry which could have been totally avoided if everyone you spoke to had had breastfeeding as their default mode/position and model on which to base "normal" baby behaviour.
(I'm not even going to get into the whole subject of problems which can occur even if you know everything and have the most expert help, this is purely why I think breastfeeding support organisations are important in modern society where they perhaps weren't before.)