Yep, the value of "early money" is hard to predict in advance for sure. I started my SS at 62 as protection for DW who gets no SS on her own and is ineligible to receive SS based on my earnings. Our timing was fortunate and the 8 years I collected SS (from age 62 to 70) were great years to be DCA'ing into the market. The accumulated stash now covers the difference between my SS at 62 and SS at 70 at a reasonable WR. Of course, it might not have worked out that way.
But, again, the primary motivation was protecting DW who otherwise would have never received SS from her own earnings or from mine had I died prior to 70.
There's a million scenarios out there. Most everyone feels what's right for them must be right for everybody. And that is just not true.