Trading should be treated as a skill set in the sense that you must learn the rules of trading and also follow them, isn't something you would embarked without proper knowledge or the right education or go into out of peer pressure, that's because you see people go into trading and you want to start trading without the proper knowledge and the skill to trade. Trading is a game for professionals trader and if you want to trade profitably you must get yourself equipped with right information necessary to start the journey.
You are correct that some traders don't understand, and if they lose, they will believe that they don't have a future in trading, which is not the case. They didn't take the time to learn trading very well, and they just joined trading to get huge profits fast, and you can't just succeed in trading without facing many challenges, and you will definitely lose. You can't say you're absolutely perfect, and you won't lose in trading anymore because you've understood everything. They have something that cannot be predicted, and that is trading. The market can change frequency, and if you are lucky, you will achieve your goal. You can simply minimise your risk if you have understood it very well, and you will not lose money like someone who does not know anything about trading and has not taken the time to study. Such a person will lose his funds since all he cares about is profit; he did not realize that he needed to learn very well before thinking about profit in trading; nothing comes easily without some hurdles.