Waiting until age 70 allows you to spend more money at age 62, NOT LESS.

Like the circus trapeze artists, swinging high above the ground.
One lets go of the trapeze and goes flying to the other one who catches him.

Looks dangerous but all works out fine.
Until one day there is a little timing glitch and the other guy isn't quite there to make the catch.


But spending down your own money now depending that the government money will be there to catch you 8 years later is fine. No risk whatsoever. The government never runs short of money, the government never changes the deal unilaterally (just ignore that it started taxing SS benefits and changed Real Estate tax benefits thereby wiping out small RE investors.)


Also no chance that *you* won't be there in 8 years, so you've depleted the "my money" and your non-spouse heirs won't be able to collect the government money that you were counting on.
'course, that isn't a consideration for people that don't have any heirs.