Tell him that if you drink alcohol it kills your brain cells, and if he drinks alcohol when he’s big, he won’t be able to have a good memory. Don’t tell him he might be an alcoholic. That will make him want to try alcohol and actually become an alcoholic. Also, tell him that to have a lot of money when your big, you have to concentrate on school;education, to have it. And if you do drugs, or drink alcohol it won’t help you because you won’t be able to focus and your gonna have a bad life, and tell him that you don’t want that for him, you want a good life for him. Try telling him small stuff that he will like to have when he’s big. Persuade him with those stuff he will want to have when he’s older. Ask him, what he would like to have when he’s older…

Right now I would just mention how bad alcohol is every once in a while. When he is older and understands the effects I would tell him that he has a higher risk of becoming an alcoholic, if he’s smart enough (really, just if his brain has developed enough) he will understand what this will mean for the rest of his life and hopefully never touch a beer. Make sure you have a very open relationship with him and make sure he understands, when he is old enough, how disappointed you will be if he drinks (basically make sure your disappointment would be enough to ensure he never does it)If you are open with him now he will be more willing to tell you what is going on in his life. You can’t start communicating with him when he is a teenager if you haven’t communicated with him as a kid because he won’t trust you.