yes, they have less free time to try drugs and they know that if they do drugs, it will effect their playing skills.
If you are in a sport and use drugs, you will either be suspended from the sport or kicked out in general.. My advise to you: DON'T USE DRUGS!!
Yes,it should be legalized in sports.
Drugs slower the nervous system.
Yes, but to do that is Illegal and foolish. Drugs are a way to "cheat" on the natural development of muscular strength and stamina.
it depends on what sport it is and what drugs the performer is using, but most drugs in sport are illegal and will usually end up in the performer being banned
you can not do it