I have written a little essay. Could you check it for grammar?
How might life change if there were no automobiles in the world?
The life would change significantly if there were no automobiles in the world. There would not be any transport for people, as a result they have to move by themselves. First, that means people would spend a lot of time in the travel and spend a lot of money to support themselves during the travel. People would have to use for this purposes horses or donkeys. But the chance to move by train still remains. The second change, people would be more vulnerable to casualties , because of absent of possibility to move mobile if something happens. For example, a first aid from the ambulance to the person who had got injured would come in a long time. Another example is when a person get victim of crime, police would not come in a time since there are no cars. But along with disadvantages, there are some advantages with automobile absence. Nowadays, many people die in automobile disasters and air crushes. Every hour 300 000 human lives would be saved, because namely such number people die on roads in the world. Humans would be able to find disadvantages and positives sides of the world without automobiles.