Why does everyone think that their employer should buy their health insurance?

I'm not driving yet but i am using driving instructions and i am only looking around to get a car but i do not understand how things work. What's car  insurance ? Why do we require it? and what are prices? please enable me!!! Thank you much love xx
"Im 24What faculties in acar produce?
"I'm under 18 yrs old and I need to get auto insurance but I dont know if I could get it on my own. Our parents do not wish to put me on there insurance easily can get it without any help and I do not know