Driving without auto insurance is illegal in most states. States want their residents to prove they can take financial liability if they are in an accident. If you are in an accident and do not have insurance, you could have penalties including fines, loss of driving privileges and auto registration.
In addition to this, if you were found at fault for the accident, you may be personally liable to pay the expenses of the other person or people that were injured in the accident. Since they won’t have an insurance company to try and file a claim with, they will likely file a car accident lawsuit against you to get reimbursed for their medical bills and lost income.
In short, if you don’t have auto insurance, don’t drive – if you get sued and lose, you could lose everything.