The categorical term was necessary to the anecdote. Using a categorical term does not imply discrimination. In fact none of the sentences you list are real ev

The categorical term was necessary to the anecdote. Using a categorical term does not imply discrimination. In fact none of the sentences you list are real evidence of discrimination, especially in the context of a discussion where it's necessary to separate candidates or hires into categories based on age/sex/religion/etc. I was skeptical of the guy from China... because we was unable to answer any of the technical questions we asked him during the interview. You'll note that the parent did not specifically say his skepticism was due to age. Instead he listed standard employment history features that are more common among older programmers.