I read this article and went back via the link to Rob Carrick's of not quite a year ago, "How to figure out the best age to start getting CPP and OAS".

Neither article talks about important contributing factors regarding CPP such as;

1) How long did one contribute and how many of those years at the maximum?

2)  Are there any additional reductions if one retires before 55 and postpones CPP until 65 or later?

3) Will one's retirement income at age 65 force OAS clawbacks, and perhaps even move one into a higher tax bracket...perhaps deferring CPP isn't for everyone?

4) Are there possible benefits within a lower tax bracket of taking the earliest CPP, cashing out as much as one can of Savings/RRSPs and moving the residual annually into TFSAs and using income sharing to minimize income tax paid?

A far more intelligent approach to the issues from an article in 2013 https://www.thestar.com/business/personal_finance/2013/02/07/cpp_5_things_you_need_to_know.html