That's probably accurate, but if 20 people apply for a position and one gets hired, is it not accurate that nobody is scrutinizing some list of 19 reasons why 19 people didn't get the position?

These kinds of things seem like there is no way to enforce them.

I don't even know if that's a thing, health insurance being more expensive for companies with older employees or whatever, but just in general. "You can't fail to hire such and such type of person because it's illegal," doesn't seem to actually have much practical ability to influence a hiring process if it wants strongly enough to not be influenced.

I haven't done any research on this and could be completely off base. Just have the same thought when I see this mentioned in general and started typing this time.