There is no such thing as a gateway drug, it is just a state of mind.
Just like you can call protein and creatine the same as steroids, ei wanting that extra edge. In reality it is a state of mind.
Why do you do drugs ? To escape reality, because you hate your life, that is why.
Why do you take creatine or protein ? because you are after that "boost" same reason you take steroids, for an even stronger boost, then HGH and slin than weird research chems, then you wake up one day, as your quadriceps are being carrased by a bunch of old homos and think to your self how the fuck you got here, from a happy little kid to this fiend.
Whats the difference