Self control is different for everyone some are better than others, that’s why we have druggies and sex addicts.
Of course, but that doesn’t affect the morality of the thing. If someone told you “I have no self-control when it comes to drugs”, what are you going to say to them? “Oh, well ok, have fun then.”
No, you say, “I hear ya man, but ya gotta try your best, ‘cause that stuff will mess you up.”