The word croissant came from the word "crescent." Thus, because of the shape of the croissant, the word was probably borrowed from crescent. So that's how they named the word. By borrowing it from the word crescent. I hope this answer helped you.
Pros: less accidents, Safety, you wouldn't have to wait for somebody to give you a ride Cons: Its already hard enough for teens to get around, Teens are very distracted, age isn't the problem its their lack of responsibility