As a researcher, it is important to me that you know the difference between anecdotes and data (the stuff produced through primary research).
What is Research?
This is a broad question that has many different facets, I realize. And I could bore you with the specifics of randomized controlled trials vs. observational studies, but our purposes here, I consider data/research to be something that has been tested. Many subjects have been involved and conclusions have been drawn. Research is testing whether defaulting workers into contributing to retirement funds actually increases earnings and then finding out that it does.
The conclusions drawn from research mean that they’ve been tried and tested. Many, many people save way more money into retirement plans if you default them into contributing in the first place. What do we do with this information? If you default your contributions, you may not end up clawing them back at all!