We all know the first point, especially the real idolize fans. If their idol announces love, this is the last thing they want to see, because they will feel that no one is worthy of their idol, and there is also a psychology that if the idol falls in love, it will no longer belong to them. Therefore, when a star announces his love or marriage, he will lose a large number of fans. The decrease in the number of fans will directly affect his future career development and lose a lot of resources, which is undoubtedly a huge blow to a star.
Moreover, the general brokerage company also does not allow stars to fall in love, especially in the rising period. Allen, for example, was in the limelight at that time, and the heat was very high, but suddenly one day his official announced that he had a son, and now there is basically no such person.
The second point is that they spend a long time in the entertainment circle. They are well aware of the darkness and various interests, so they don't want to find their other half in the circle, but finding someone outside the circle to separate the two places for a long time will slowly lead to problems. So they also chose not to get married for the time being. Being a star is sometimes really helpless, and you can't even make your own decisions about getting married.