What is a form of oligarchical rule in which leaders are much older than other citizens called?

Gives new meaning to respect your elders!

ChampionNymph37634, MONEY SHOULDN'T BE PLAYING THE ROLE FOR THE PRESIDENCY. SMARTNESS & GOOD CHARACTER SHOULD BE VALUES TO LOOK FOR...

It had its day, but it is quite outdated, the older generation is rarely open to new technologies or new ideas for the betterment of all.

Might be economics at play here. Older folks have the power & influence associated with wealth because they've had more time to accumulate it.

Iron, age