shanton is right
Otherwise you could not have, say more tha one or two drinks at a bar because for some smaller people like young girls etc. they cant handle anymore without being imaprred. SO should there be a limit of 2 drinks at a bar for everyone? no
And I have a family member who went through something and if you drink at a bar at all and wreck they dont care of the amount they just see you ahd alchohol in your system and thats enough to chage you even more.