French bulldogs are banned because of their aggressive nature, sharp teeth, well-developed muscles, and a certain degree of aggression, so they are banned in many cities. The French Bulldog has a lively and cute personality, and is very loyal and protective of its owner. Therefore, if you want to raise a guard dog, you can choose the French Bulldog, but you must apply for a dog license, raise dogs in a civilized manner, and wear a leash when walking the dog. Try not to take your dog to places with many people or children to avoid accidents.