I'd be curious to see the actual ages of people involved in these idiotic situations. Yeah there are plenty of idiots of any age, but I'd be willing to be it does skew towards the younger ages. Is it something so simple as them not really knowing how to handle their alcohol at that point?
And yes, there are idiots at every age at games. I had a 60-something south Boston fool spewing obscenities at me at a Bruins-Sabres game last year (the Miller-Lucic incident). I had line after line of nursing home jokes all lined up in my head, but since it was an entire row of south Boston behind me, I decided against it. Those people terrify me.