Answer:
True
Explanation:
There are several Supreme Court Rulings regarding the ADEA during the past two decades, most of them concerning technical issues, but the most straightforward ruling regarding the question is:
General Dynamics Land Systems, Inc. v. Cline, 540 U.S. 581 (2004)
The Supreme Court ruled that the purpose of the ADEA is to prevent discrimination against older workers in benefit of younger workers, but it does not prevent discrimination against younger workers in benefit of older workers.