But that doesn't make any sense.
Slightly more than half of Singaporean males celebrating their 65th birthdays will survive to age 85, based on today's statistical longevity data. I know very, very few people -- except compulsive gamblers frequenting casinos -- that would be satisfied with a 50-50 roll of the dice on whether they outlive their savings or don't. Most people are risk averse. Most people don't want their bedrock retirement income to collapse to zero for any period of time while they're retired, even for one month....
....And most people don't structure their retirement finances this way, or at least they try not to. Traditionally, they hoard assets and put them in ultra conservative vehicles, such as low yielding bank fixed deposits. Which can be done, obviously, but that's expensive.
There's value in longevity insurance, a lot, for anyone who is risk averse. You have to assume risk aversion in this assessment, because most people are.
If you're the casino gambling fan, that's exceptional. Tag yourself accordingly: "I'm not risk averse. I want to try gambling in this way." And that's fine if that's what you want, but it's not the majority viewpoint.
LOL, my own viewpoint .....
Most people are risk averse. Most people don't want their bedrock retirement income to collapse to zero for
any period of time while they're retired, even for one month....
Ans

We are choosing a lesser evil of the 3 plans so to speak, which mean all 3 plan will still give a stable income till death only more or less and not zero
Lastly , if based on today statistic from Stats.gov.sg on who is still alive based on Singapore citzen only. This cover a period of 30 years around
1.3 million people born (average about 50K per year), who should be 65 and above
2013 2014 2015 2016 2017 2018
65 & Over 338,714 414,844 441,553 468,368 496,495 526,397
70 & Over 231,918 260,361 266,672 278,447 301,067 323,492
75 & Over 136,030 158,342 168,775 179,520 186,707 193,437
80 & Over 71,174 84,875 90,767 95,016 98,419 103,901
85 & Over 30,151 37,748 40,442 43,028 45,767 48,669
the rate of increase is steady at 3000 per years assuming 20 years, the rate of 85 above is alive maybe 110,000, but that is out of 1,100,000 million people . I dont think it is 50/50 for those at 65 now to 20 year later more probably 10/90 at this rate. Please do include that of 110000, 33.3% will be only male which fall lower to 33,330 which stand even lower out of the 1.1 million . I might wrong, but anyway again my view and my choice