When I was in primary school, my favorite color is green. People sometimes have no idea why they get the predilection for certain things, like people or colors. I did think of this question a lot as some people will show their preference to me or the other will show to the people around me.
Later on, I come to a conclusion that people like those that are close to them, such as the appearance or the character, it is quite a subjective matter. People can pretend to be the same to get something or stay what they are to wait for those who share the same traits.
So I guess people who are in stock market love red color but who are in crypto market love green color. For the reason that they are interest related, in order to live a more pleasant way, we can choose to ignore some interests and focus a little bit on others, the world may become different.
