For a number of years, many employers who couldn't care less about equality have used it as an argument to attack long-standing redundancy agreements.
Traditionally, unions pushed for any redundancy selection (if we couldn't stop compulsory redundancies in the first place) to be on a "Last In, First Out" (LIFO) basis. The arguments for this were firstly that it was objective and prevented management picking and choosing who they wanted to get rid of (often undermining union organisation in the process), and secondly that the longer you work somewhere the more you build your life around that job so the more impact redundancy would have on you. Sadly, the age discrimination practiced by many employers also means it is often harder for older workers to find other employment.
There can sometimes be some genuine equality problems with LIFO, for example where the composition of the workforce has changed significantly over time, and LIFO could result in a much higher proportion of one group being picked than another. This has often been addressed by making LIFO one of a "basket" of criteria.
UNITE has just won a case at the High Court to protect the use of LIFO in redundancy selection against a challenge from Rolls Royce based on the age discrimination legislation.
In a lot of the debates about the age discrimination legislation, employers do seem to lose sight of the fact that the intention of the legislation was to protect workers from discrimination, not to undermine the rights of all workers.