Re: May I be the first to call "bollocks" ?
Retirement is when you realise all that money you'd set aside for a pension has been taken by the various governments and squandered leaving you penniless. At that point, you start looking for jobs that'll keep you fed until the day you die.
Unless you're rich. If you're rich it's whenever you're tired of messing with industry, or politics or whatever and want to go spend your time on a beach of that private island you bought, ignoring the world and its troubles 'cause that's beneath you.