I cant think of a worse idea than young men being called elders.
I always saw these fresh faced youths with their "Elder So and So" badge on, and I'd think "You're not an elder, you're a youngster!"
I agree. It doesn't matter how 'mature' you may be as a person, if you're under 30 you don't have the life experience and miles on the clock to be considered an 'elder' who ought be 'counselling' husbands and wives, parents, retired or elderly ones, etc.