From Bloomberg Opinion:
@NickOttens - That sounds reasonable. Do you think we can invite some of the FIRE movement people to comment on that here?
In the US, it is advisable to wait until 70, which benefit is 25% higher than retiring at 65 or even 69. The fact that one years begets a 25% increase in social security is worth waiting for, and a possible sign that a person is a happy person.