From what I've seen in a big city like Manchester, yes there is alcohol abuse by younger members of society but no more than there was 20 or even 30 years ago. It is more highlighted now with the fly on the wall programs and 18-30 holidays. I think most of older ones will have done much the same in our younger days. Most of it is binge drinking and that is not a new thing. That has been a thing that happened in the Royal Navy for many a year. A ship comes alongside after spending a period at sea and a fair amount of the crew would come back worse for wear!
However having said that, the incidence of liver damage through alcohol in younger people does appear to be on the increase. Now, I don't know whether that is because of the advances of routine blood testing when someone is seen in A&E or it really is an increase.
In years gone by when people were brought into the A&E dept of the Naval hospital during/after a night on the town they were simply patched up and sent on their way. Nowadays they are screened for possible liver damage I think and so the problem is noted much earlier than used to be.