Most prosecutors are good people, but their client is the State and it is not their job to inform you of your rights or the possible consequences of your guilty plea. There are any number of reasons a person can lose his or her license. The reason for the suspension or revocation will determine how long its duration and what will have to be done for reinstatement. The reasons for loss of driving privileges are too numerous to mention here but receiving three moving violations in twelve months or being arrested for a DUI are two examples. There are certain circumstances in which a permit is available and there are certain situations where a driver's license can be immediately reinstated.
Every case is different.
If a suspension or revocation doesn't concern you, then you have obviously never tried to survive in this country without a driver's license. Unless you live in a city with a large and diverse mass transit system, it is virtually impossible to function without driving. If you are considering driving while your license is suspended, I urge you to reconsider. A DUI can happen to anyone. In my time as a traffic prosecutor, I noticed that people from all walks of life could make this mistake.