Bar in NY raises drinking age to 25 because young people are 'too annoying'
pressunion.org
pressunion.org
However, guess it's only news because it's New York. =)
I'll try another thought experiment which is a bit more similar to the real-life situation: do you think that private entrepreneurs should be able to ban people over a certain age, e.g. everyone above 50?
And take it from me -- 50somethings have as much trouble holding their liquor as 20somethings.