The median age of OkCupid men is 31. The median age of people who stay at hostels is slightly younger. Music festivals and concerts trend young.
So the present author is nearing the age in which one can be described as too old. Too old to be cool, if such a thing could ever be said about one who was never cool in the first place. But there is a definite barrier, a reality, if you will, of when ages are revealed, that the present author will soon be the oldest in the group, in the room, at the club. This is not without its existential baggage and sense of dread. At some point, maybe age 30, it stops being cool to be staying at a hostel or to be single and singing - or singling - at a concert, and is instead considered weird.
Perhaps, though, the present author, who is still routinely asked if concurrently attending college, can peddle relatively youthful looks towards a new reality of being 20-something for many more years, even if, the truth of the matter is, there are only a few left.
Or, perhaps, more practically, one who is going through the perniciousness of aging could simply choose not to give a shit, and do and go to whatever they want, anyways.