Why can't trainee lawyers speak in court to solve the problem?

Then, why didn't the court let the intern lawyer speak? A related person from Gongshu District Court in Hangzhou said that the reason why intern lawyers are not allowed to speak in court is because only lawyers who have obtained the lawyer's practice license can speak as agents on behalf of the parties, while intern lawyers are not lawyers in a strict sense, so they cannot speak in court. So before the trial, the clerk will verify the identity of the agent. If you are a trainee lawyer, you can go to court with the attorney and do some auxiliary work, but you can't talk. Then, can a trainee lawyer speak in court as a civil agent on behalf of the client? Chen Sanlian, secretary-general of Zhejiang Lawyers Association, explained that according to the Code of Professional Ethics and Practice Discipline for Lawyers formulated by the National Lawyers Association (hereinafter referred to as the Code), trainee lawyers are also bound by the Code. Article 15 of the Code stipulates that a lawyer may not accept entrustment in his own name, that is, a trainee lawyer cannot become a citizen's agent. Chen Sanlian added that Article 23 of the Rules for the Administration of Internship of Lawyer Applicants formulated by the National Lawyers Association also stipulates that law firms and internship guidance lawyers may not instruct or let interns undertake lawyer business alone, may not sign agency agreements in the name of lawyers, and may not express defense or agency opinions in courts and arbitration tribunals in the name of lawyers.