Muay Thai is for everyone! Most gyms have a group of fighters and a (probably larger) group of people who just train for fitness and whatever other reasons inspire them to train. Some people just aren't interested in fighting, thats their choice. Other people think they dont want to fight but end up fighting. Some ppl want to fight, try it and hate it! Doesn't really matter either way, you need all the different types of ppl in a gym. Non-fighters still help out loads and make the best sparring partners sometimes, most of them have just as much skill, technique etc as the fighters, they just choose not to fight!

One thing i like about thai boxing, is that older people take to it well. the fact that you can kick the legs and use knees encourages them, as not everyone has the flexibility that is required in some of the other kicking arts/sports.