Got mine at launch and don't have any drifting yet. But I noticed a minor issue with the left stick where it wouldn't register a full press immediately, or reliably, so I sprayed some IPA in there and haven't had issues since. Once issues like that start to crop up I'm sure it won't be long before I start getting drifting though. When that happens I'll just buy some replacement sticks in bulk. I prefer using my Pro Controller anyway so I only use the JoyCons when handheld.
Everyone I know suffers from drifting but they play their Switch a lot more than I do. And they're probably less gentle with it, despite insisting they are careful, I'm always gentle with my stuff. But it happens to everyone eventually, no matter how careful they are.