Keji's younger brother will be more noble than Keji's younger sister, because his younger brother needs more exercise and secretes more hormones, which will better promote hair growth and have a shiny effect on hair. In addition, the male dog's skeleton is relatively large, and the overall look will be more handsome and the face value will be higher.
If you care about your appearance, you can get a male dog, which will be more pleasing to the eye, stronger, less likely to get sick and protect your owner.