It's still an additional cost, and not a small one. Sure, they can adjust, but why should they have to?
All of this is simply to push responsibility onto others, because people cannot be bothered. That's the part that is the toughest sell. It's not because they are simply down on their luck, it's because they are reckless, short-sighted, and know that someone else will just pick up the tab.
My alternative is to either increase the retirement age, or to reduce benefits. We've tried raising taxes more than 20 times, and we're still in a land of unfunded liability, that we can't even see the top. Let's try something different.