Whippety as a member of the baby boomer generation, which only really only exists upto 1955 at the latest, I am not knowingly suffering any binge drinking illnesses, nor do any of my friends of the same age. We didn't call it binge drinking we called it a good night out
My children were allowed to drink at home, often sticking a finger in a glass, licking it and running off saying 'yuk', as they grew up we used to go to the local social club as a family there they used to see alcohol drunk and people having a good time, yes I have seen them drunk but not very often and and I never heard of them being in or around any alcohol based disorder.
Grandson now 20 also grew up where alcohol was available at home and is more interested in playing football or his car.
Neither myself or my husband ever touched drugs other than he smoked normal cigarettes, my children assure me they never tried drugs, friends of theirs who used drugs did get into alcohol based violence maybe a lot of the trouble today is due to the mixing of alcohol and drugs, after all in chemistry we all saw the results of mixing chemicals.
As for the original question beer varies in price from pub to pub but it is not necessarily the cheapest which has the most trade, and the breweries increase the prices by more han 7p per year anyway. The only ones it will effect are the ones who drink at home I can't see many drinking one can less per week