With that in mind I think we've been optimizing the charging infrastructure in Europe for something that worked well in North America.
Since you are going to need a bit of a longer stop I'd think it would be equally if not more important to ensure that there's fast chargers at every restaurant & attraction that's a short drive from the highway, rather than blindly copying what works for gasoline powered vehicles.
Re #1: I didn't mean to do short pit stops because you need to, but, and particularly with kids of a certain age, getting them out of the car to walk around for 5 minutes every hour might work much better than a similar 15 minute break every 3 hours, etc.
Which is still a big advantage of combustion, since fueling itself takes 1-2 minutes you can more easily pick which stop is the rarer longer stop.
Re #1: I find that those types of stops happen at the beginning of trips. If you're only an hour or two into your trip when you need to grab gasoline, you grab it quick. But with an EV you should be charging at home or at your hotel overnight, so you start out with a full battery and don't need a charge until about 4 hours in. Once you're 4 hours into a driving day, you want to stop for more than 3 minutes.