Amy said "I think everyone with a first marriage wishes they’d waited."

You said above "According to Amy, everyone who has EVER been married wishes they had waited."

I probably intrepreted amy's comment a bit differently as I read into her statement as those who are on their 2nd marriages wished they would have waited on their first run at marriage, not everyone who has ever been married.  In the end, I take your point that using words like "everyone" in this case is silly as there's no way to prove such a statement nor do I believe that everyone who is married wishes they would have waited.  Plenty of people and good stories out there about married couples on their first marriage being happily married for their entire lives with no regrets (as it relates to when they got married in life).  Hopefully, you are one such person!!  Cheers!