You are being very naive. Here's a quote from Scott himself, which he wrote in his book (likely written in late fall 2010) when he was sober for a few months, where he said that he prayed that he could remain sober (he didn't sadly):
"For years I've known goddamn well that I'm a drunk, but who wants to admit that? After kicking the strong stuff, why couldn't I have a little drink now and then? What harm was there in a small indulgence? The answer was serious harm- potentially fatal harm. For me, putting a drink in my mouth is something like putting a lead blanket over my heart. There's been so much pain in the past few years that I'm afraid to feel, or commit. I pray that this will end. I don't want to be alone anymore. I want to be able to love again. The dream of every drunk- to be able to manage their drinking- is one that has died hard for me. My prayer is that, once and for all, that dream is good and dead. So I'm back to counting days. It's been nearly two months since I've had a drink. By the time you read this book, my hope is that it will be six months."
If drinking worked for Scott, in the last 6 and a half years his wife wouldn't have left him, and he wouldn't have been fired by STP and Velvet Revolver, and his best friend/musical partner Doug Grean wouldn't have left him. I hope that like Scott said right there in his book, that he can quit drinking for good and get healthy and find happiness.