All my life, I've seen men drunkards and people who drink on special occasion. We all know what alcoholism would bring about and we are aware of its bad effects. But still, people drink for several reasons as,

1) Peer pressure
2) Prestige
3) Drowning their sorrows
4) Enjoying their happiness
5) etc etc..

Is that acceptable? I mean, even in every sector of work, it's becoming usual to drink alcohol. Why is that?

Why are we accepting such a habit as something of norm?
Instead of prohibiting drinking, we're going along with it. Is this what normalcy is nowadays?