For the same reasons others do so:
Because they are ill.
To enhance performance
Recreational use
Because they are stupid.
Yes, just like in any sport, there are soccer players that take drugs, both legal and illegal ones.
To try and improve there strength and stamina
Some soccer players do take ballet classes. I have a peer dancer who is a national soccer player and he takes ballet classes a few times a week. Other athletics such as football players have also been known to take a few ballet classes.
Coffee
Eleven in each team.
11 players (including the goalie) take the field from each team.
soccer players have to stay 2 years in high schoo
Football (or soccer) has 11 players per team.Football (or soccer) has 11 players per team.Football (or soccer) has 11 players per team.Football (or soccer) has 11 players per team.
soccer is boring
Soccer players get recognition by being a good sport.
No
soccer players pro soccer players on the field and 11 ladies dancing