While any citizen is free to proceed in a criminal case without being represented by an attorney, it is usually a very bad idea. Why? You are up against a prosecutor who has a law degree and years of experience prosecuting people just like you. The prosecutor will be educated and experienced in the Rules of Criminal Procedure and the Rules of Evidence, and will use her knowledge against you to her advantage. Remember, the prosecutor is not on your side and cannot give you legal advice or suggestions on what to do. His or her job is to represent the interests of the State of Texas.
As an experienced and skilled criminal defense attorney, I can easily outmatch the prosecutor, discover legal issues in your case that may require your charge to be dismissed, and use every advantage to aggressively negotiate a successful resolution of your public intoxication case.
You are free to try to handle anything on your own in life. For example, you can attempt to rebuild your own car transmission, extract your own teeth, or cut your own hair. But doesn’t it make more sense to invest in a trained professional who does those things every day, and trust that the job will be done correctly with a successful outcome? The same is true when it comes to facing a criminal charge, because your future is riding on the line. You only get one opportunity to obtain a successful result in a criminal case.