Coast to coast is very uncommon. San Diego to Seattle, or New York to Miami would be much more typical of a once per year road trip.

If I were to add a NY-Miami-NY trip once a year to my life, and try and do that in a single shot, that would add ~4 hours of charging time round trip. In reality you wouldn't do that in a single shot (20 hours of driving each way!), you'd probably break it up into two days each way and thus have at least two low charge->100% in there "for free" time-wise. This would cut out an hour or so of charging wait time, so really probably closer to 2ish hours of charge time. On a 40+ hour round-trip drive.

EDIT: This is with a Hyundai Ioniq 5, not my current Mach E. The Mach E doesn't charge as fast as this most recent generation of EVs, so it would be a bit over 4 hours each way in the Mach E. However, if my plans for a car was "go on a yearly road trip", I would have probably bought an Ioniq 5 exactly for this reason. Personally though I'd probably just fly for either of those distances instead of spending 20+ hours in a car each way. Which is why the standard range version of the Mach E is perfectly fine for me.

> In reality you wouldn't do that in a single shot (20 hours of driving each way!)

That depends, one person probably isn't doing that in a single shot, but a three people driving in shifts might.