Soccer is usually played around 3-4 hours because they have to practice hard for their games. I know a pro soccer player and that's how long they practice.
It can vary from 2 minutes to 15 minutes. @ minutes for a house soccer game. 5 minutes for a travel soccer game. 10-15 minutes for pro/semi-pro soccer games.
You can be a pro soccer player as long as you are good, fit and playing well. Most players retire in their thirties when they find younger players, just a little bit faster, are taking their jobs.
After years of playing soccer with long hours of intense practice, a player could be scouted during a local team game by a scout from a professional team, you then go to a try out and hopefully get on