How about age?
How about age discrimination? I once did a phone interview with a big-name Silicon Valley company. On the phone, they were excited about my product knowledge, direct use, and tech history. They invited me for an in-person interview. They closed by saying, "You'll love working here. Almost nobody is over 30." (Gulp.)
I showed up, and you could tell by their reactions that my 40-something age was not at all what they were expecting. The interview went downhill from there.
Lest you think this is unusual, it is not. Age discrimination is rampant at tech companies, where they believe that anyone with a measure of maturity can't possibly understand technology. In reality, most of us were using computers back when there was no GUI, WYSIWYG, or SaaS.