Golf carts are typical on most courses, ensuring that the game is accessible to everyone, including those who have difficulties walking. Professional players on the PGA Tour, on the other hand, walk the full course with their caddy dragging the clubs without even using a hand cart. This is because they need to stay in shape and avoid injury. There are also many courses where the pros drive themselves because of safety concerns or lack of parking spaces for cars. These men travel across country every week putting in long hours on the road so they can't be bothered with having to shuttle themselves around. However, not all players on the various tours are professional athletes. Many young people take up golf as a sport and career choice, just like others do in other sports. They may travel with the team but it's not always the case. Some of these amateurs may even earn a small salary doing something called "caddying". This means they help the pro player by carrying his or her bag off the golf cart and into the clubhouse after each round. The caddy gets paid per hour or per day depending on the contract signed with the player. In return, they get free training from the pro player who can tell them anything from how to hold their club correctly to more advanced techniques needed to play better. Some top-level players have personal trainers who work with them one-on-one to improve their game.