Fighting is 100% your choice not your gyms choice. There job is to train you and teach you how to fight, it's up to you if you compete or not. You should learn about it if you are interested.
Ok so I've been doing some strength training and I am thinking about going to take some mma classes and I was wondering if they would just train me or I would actually fight too Im only 14 and live in Tennessee and don't really know how it works