I'm really sympathetic to older candidates--I'm in one of those 'mentor-each other' mentoring relationship with an older person (50) who is a newly minted Ph.d.
I want this person to succeed, but one of the hurdles we've experienced has oddly been this: when we discuss interview/self-presentation techniques (what to wear, what to bring, what to talk about, etc,) there are many times when he/she resists doing certain things because s/he feels that they're fake, and look like a sad attempt to look/act younger. Other younger candidates see these tasks as the things you have to do to win in this system that is rigged against you. I'm talking about: suits. Getting a haircut. Looking professional. Selling yourself verbally.
And this relates to age how?