Wei Zi fought with the old man.

As long as you are mentally normal, you should bear the responsibility for the injuries caused by fighting, which has little to do with your age.

Article 16 of the Tort Liability Law stipulates that anyone who infringes on others and causes personal injury shall pay compensation for medical expenses, nursing expenses, transportation expenses and other reasonable expenses for treatment and rehabilitation, as well as the income reduced due to absenteeism. If it causes disability, it shall also compensate the disabled for living AIDS and disability compensation. If death is caused, funeral expenses and death compensation shall also be paid.