Age discrimination refers to treating someone differently or not offering opportunities because of their age. Age discrimination can occur no matter what age you are; whether young, old, or middle-aged, it can happen to anyone. Ageism refers to the discrimination or stereotyping of people according to their age.
Employers can’t promote, hire, fire, or decide a staff member’s salary based on the age of the person. The motivation behind actions, however, can be challenging to determine. Age discrimination can be a form of unconscious bias, so it’s possible that the person may not even realize that they are doing it.