Why do people automatically assume at 65 you can retire. You have no idea what this guy's financials are. Age should not be the factor - ability should be the factor - for any job. Experience used to be of value to IBM, but they no longer value it.
They want young, because young is cheap.
This new generation of kids, who have set themselves up for the highest college debt on record, have also sold themselves to corporate America for very cheap.
They entitled ones feel the entire older generations should push out of their way, and that they know everything. In reality, their replacements are already coming up through high school now, and will seek to replace them at an even earlier age for once discrimination on a massive level is accepted, it sets the barrier very low for each following generation. For those in Texas, if age was the factor of your RA, look up Kaplan law firm. IBM has been one of the worst abusers in history on age discrimination of folks over 45.