Do you have to be qualified to be a personal trainer or fitness coach in the uk?

I wanna be a personal trainer, or/and a fitness coach. Id love to ditch my job, and do something i love. Starting my own business doing this would be fantastic!! i know theres not alot of money when you try to start out any new business, but this would be great!Do you have to be qualified to be a personal trainer or fitness coach in the uk?Qualification is the key. No one will want to be advised by a trainer who hasn't qualified but just teaches what he or she has been doing for years. YMCA offer a good course recognized by the fitness industry.