Ceramic coatings are a great leap in advanced protection for your vehicle. Not only can you protect you paint but you can protect your rims, glass, leather, fabric, trim, and plastics. While you certainly can protect your vehicle with endless other less expensive options, coatings are those things but on steriods. They keep surfaces in great condition for years and also easier to maintain.
Coatings are not bulletproof like some people and companies try to make you believe. You are not able to hit your car with objects and not have it scratch. You can't set fire to your car or paint. You also can't expect to have a coating installed and then never have to care for the vehicle again.