Whether boys' shirtless military training violates the regulations depends on the regulations of military training and the regulations of instructors. Generally speaking, there is no requirement for military training, but most of them are required to wear military uniforms. Perhaps there will be requirements for boys to go shirtless and exercise their masculinity, but perhaps there are still fewer. If there are no hard and fast rules, military training can go shirtless.

Bad words and deeds in public places are legally "public order and good customs" and can be punished according to the Public Security Punishment Law and other relevant laws and regulations. But going shirtless is subjective, and it depends on how law enforcement officers look at it. For example, if you go to a memorial hall or the entrance of a foreign embassy, you have a great chance of being sued. In front of your own house, probably no one cares about you.

The purpose of military training is to improve students' political consciousness, stimulate patriotic enthusiasm, carry forward the spirit of revolutionary heroism, cultivate the spirit of perseverance and hard struggle, enhance the concept of national defense and organizational discipline, develop a good style of study and life, and master basic military knowledge and skills.

The significance of military training to students;

1. Students' military training is the need to cultivate students' all-round development in morality, intelligence and physique.

2. Military training for students is the need to speed up the modernization of the People's Liberation Army.

3. Military training for students is the need to strengthen the construction of national defense reserve forces.

4. Military training for students is the need to strengthen national defense education for all. Military training is the basic form for students to receive national defense education, an important measure to cultivate "four haves" talents, and an extremely effective means to train and reserve reserve reserve soldiers and reserve officers of China Army and strengthen national defense forces.

The purpose of military training is to improve students' political consciousness, stimulate patriotic enthusiasm, carry forward the spirit of revolutionary heroism, cultivate strong perseverance and hard-working collectivism, help students enhance their national defense concept and organizational discipline, develop a good study and life style, and master basic military knowledge and skills.