I hate any categorical term, which lumps folks together on one criterion. "Geezer" says that by , in essence, stating that one's age (or whatever the similarity is) is the defining characteristic of one's being, much like a whole bunch of other words used to categorize members of our society.

Besides age, I may have very little in common with other folks 71+ (or whatever age is supposed to start so-called "geezer-hood"). Why should I be lumped in with them simply because of age?

I much prefer to state the obvious, if it is any way necessary - the obvious being - a group of individuals in their 70's went for a bicycle ride. However, I would prefer as little reference to age (or any othe singular identifying characteristic) as possible.