Honestly, everybody should study how to execute sexual techniques properly.
Nobody is born with inherit knowledge of how sex works and how to make the other person cum, but I feel people who don't know proper techniques end up being treated as unwelcome by their possible partners and that leads to more mistakes in bed.
Nobody should be ashamed of being bad on bed, but I see a lot of spaces where shaming has become accepted behavior. I mean, how many times have I heard women throwing the phrase "men can't find the clitoris" right and left...