Comment by rootusrootus

At the risk of saying something obvious, the socket and the breaker are sized for the peak load, not for average load. A typical home might have 300-400 amps if you total up all the breakers even though the mains are 200A or even 100A.

Also, a bog standard 14-50 is likely not suited for 80% steady EV usage anyway. They make EV-rated 14-50s now because people keep melting the older ones. And that happens even though the vast majority of chargers won't draw more than 32A on a 14-50 due to the historical popularity of using 40A breakers for a 14-50 receptacle.