Many of us have learned over decades.
Learning to listen is many many layered, the information at every level is contradictory, the investments are substantial, overall sound quality depends on the whole system, many step are counter intuitive, the benefits are frequently not fully realized until hundreds of hours of use, and many folks are not good with complex decision making to start with, at least until they have heard concrete improvements in sound quality as a result of their choices.
It goes on. Decision making in highly uncertain environments takes skill (function of prefrontal cortex) and years of experience really help.