I think there are many older ones that see the problems. My 80+ year old mother does. But they are in a more difficult position than younger persons. It could be much more difficult for older ones to re-establish a complete new network of "friends" (even conditional ones like the JW's). And they likely have no other network -- ie, school or work.
I've mentioned on this board some of the interesting comments I've heard from older ones in the past few years.
"I think those guy in NY have gotten something screwed up."
"I guess I'll have to make it to the New World via the Underground." (Coming to the realization they were indeed going to die, but couldn't just come right out and say the bOrg was wrong.)
There are many who discreetly say things within their close circle of friends that they feel they can trust, but they know better than to be too vocal about it.
These older PIMO's are really a "drain" on the bOrg. They need assistance from the younger members and in most cases they are respected and younger members will help them with assistance with their home or transportation to doctors, etc. At the same time, they are cutting back on their contributions because they came up when "Free, Free, Free" was printed on all the literature, and they remember that the (old) bOrg would "never beg for funds" unless the bOrg lost Joe Hoover's blessing. They witnessed the bOrg win 49 cases in the 1950's with the SCOTUS but now they hear of endless losses and settlements in CSA court cases.
It's no longer the Organization they used to know.