This posting isn't for SAR, which typically requires specialized skills and the time commitment is different. This is for _Preventative_ SAR aka PSAR, which basically means just being physically present on trails to give people guidance, direction, and education about how to not get into dangerous situations. The time commitment for PSAR can be greater.
It's asking a lot because the vast majority of folks can't not work unless they also want to stop eating or become homeless after the end of the season not because they implicitly lack the commitment. It's also unpaid labor for a government with a 6 trillion dollar budget.
Most of the old folks retiring at 70 aren't doing any of these labor intensive affairs so its mostly a task for the idle children of the upper middle class to rich. Are we feting people for being born on third base again?