The Washington Post has an article out displaying a couple of charts that they say show that during the pandemic people have been retiring but deliberately delaying claiming Social Security retirement benefits. Here's one of the charts:
The thing about it is that there's been a similar decline in the number of SSI claims filed and there's no benefit whatsoever in delaying filing an SSI claim. One possibility is that office closures and the increased difficulty in reaching Social Security by telephone have caused people to delay filing claims out of frustration. People don't have to be deterred entirely or even for long to produce something like this graph. Just deter a certain percentage of claims for a month to three months and you end up with fewer claims filed for a time period. My experience is that few people are crafty about the date they file their retirement claim. That sort of behavior exists mostly in the minds of newspaper writers who are overly invested in the idea that simplistic economic theories explain human behavior. They don't factor in the service environment at Social Security.