It seems a lot of people are concerned about negative test results required before traveling abroad or returning to the US. With the wide availability of rapid self-testing kits, why aren't more people testing regularly, at home prior to a trip, or even during a trip, so there are fewer surprises? Heck, I've been checking myself once a month or so, just to know my current status, for everyday life at home. I'm not talking about doing the proctored, certificate-generating tests - just doing the self test. A positive result sends you to get a PCR for confirmation. We can find them here at most pharmacies for two for $25 or so. Small price for a little more peace of mind.
What we know about the current situation is: you can be fully vaccinated and be infected; you can be infected and be asymptomatic. So why risk dealing with a last minute positive result before a trip, within the 3-day window? "Unofficial" self-testing in the days before an "official" test may pop up a warning and give more time to del with it.