What is "casting a net in a large area and selective fishing" in the relationship between men and women? How can we stay away from such people?

Cast a net in a large area, in fact, there is nothing wrong with knowing many people. You may choose friends and know many talents. You may know a good partner and many people of the opposite sex! Of course, casting a net on a large scale is immoral, but casting a net on a large scale is actually a mature concept of love. You must have the capital to cast a net. Casting a net without capital is a joke in the eyes of discerning people. There are many fools in this world. If you don't learn to be smart, you will be eliminated. Don't fight in peacetime, really. Expanding mesh and selective fishing will lead to a decline in fishery output, so it is necessary to expand the area of nets. It embodies the unity of opposites and the harmony between man and nature.