Hiring an attorney can be expensive. However, not having representation can be even more costly. An experienced lawyer knows what needs to be done and handles the procedural issues that need to be completed. If you are not familiar with the statutes and rules that govern your case, you will not receive assistance from the Judge and certainly not from opposing counsel. A person representing him/herself is held to the same standards as an attorney.
I have litigated many cases against individuals who have chosen to represent themselves and it rarely turns out well for that individual. Not because they are being treated unfairly, but because they do not know how the system works, what is relevant and what is not, and what they need to do to get their evidence admitted. People who are not familiar with a courtroom will not know how to function in a courtroom setting. They will be unorganized, not understand the issues that need to be addressed and not be able to get their evidence admitted for the court’s consideration. In short, it can get ugy for someone trying to represent themself against an experienced attorney.