Rate the following essay on its writing, argument, and language skills:
Driverless cars start to be more famous in all ages. Because they are helpful and high-technology. But somehow, they still need improvement to make them surely safe. Here's why we should not have them developed.

First, accidents can happen anytime if we don't drive carefully, and whose responsibility is it? The driver or the manufacturer? As it said in paragraph 9, ' Presently, traffic laws are written with the assumption that the only safe car has a human driver in control at all time. As a result, in most states it is illegal even to test computer-driven cars. Californis, Nevada, Florida, and the District of Columbia have led the country in allowing limited use of semi-automous cars; manufacturers believe that more states will follow as soon as the cars are proved more reliably safe. Still, even if traffic laws change, new laws will e needed in order to cover liability in case of an accident. If the technology fails and someone is injured, who is at fault-the driver or the manufacturer?'. This content tell us that even the driverless cars are improved, we can't still sure they are 100% safe. And if the accident happens, It cause more than money, it can take away our lives. This is why the development of these cars should not be made.

Score: 3