I am 23, work at a startup, and also never drink, but definitely disagree with the implications of this post. Startups don't have any sort of particularly entrenched alcohol culture in the US- everyone does. And it's not really a problem, either. You can't ask for planet earth to be a safe space so you never get tempted by your booze urges again, just continue refusing, it's not something that can- or should- go away entirely.