The train of missed opportunities

Visiting all the wagons in a drunken brawl
Not realizing what is not in the picture
Only later on, missing the station
A pair of eyes in the distance
A fragment of laughter
Warmth

Is it ever too late?
I can still go back and make the change
I'm only twenty
said the nonagenarian, rising from his bed, falling over his muscleless legs
and breaking his hip