Conclusion: I think it's normal, because some boys have been learning dance since childhood, and their figure is more graceful than that of girls. This is their advantage and interest. Just respect them.

Aerobics is a popular and popular sport that integrates group gymnastics, dance, music, fitness and entertainment. Aerobics absorbs a lot of movements of upper and lower limbs, trunk, head and neck and feet in disco, jazz dance and break dance, especially hip movements, which adds vitality to aerobics, helps to reduce the accumulation of fat in buttocks and abdomen, and improves the coordination and flexibility of movements.

Aerobics history

The ancient Greeks' worship of human beauty is world-famous. They believe that among all things in the world, only the bodybuilding of the human body is the most symmetrical, harmonious, solemn and energetic. The ancient Greeks loved to exercise their beauty by running, jumping, throwing, aerobics, bodybuilding dance and other sports. They put forward the idea that gymnastics exercises the body and music cultivates the spirit. The emergence of gymnastics is an important factor in the formation of aerobics.