I think people were let go because they weren't good at their jobs, not because they were old. People who have been fired because they weren't good enough are going to have a harder time finding a new job.

Our education system is teaching more advanced topics at younger and younger ages. Hence younger people may be more "up to date".

An older person will experience ageism, but they can combat this by always learning new things throughout their life. I'll take a 50 year old javascript developer who's proactive about testing and CI over a less experienced younger developer.

But I'm going to choose an inexperienced javascript developer over an 50 year old experienced COBOL deverloper if I'm building websites.