People like you are a hazard on the road. Driver fatigue is a real thing - and saying you can go 8 hours without stopping isn't a testament to how awesome you are - it's a testament to how little you care about others sharing the road with you.
Some people think they have super-human reflexes, or are immune to fatigue, or have trained themselves to task with a phone and driving. Most of these people are wrong. Chances are, you are just an ordinary driver - and there is nothing wrong with that.
I'm more than willing to admit I'm an average driver - and so I will take breaks, or forgo using the phone, or drive slower to compensate for that. Yes, sometimes I do drive poorly (sleep deprived, stressed, or in a rush) - but I'm never going to claim I can go 8 hours without a break. That's going a bit far.
When going from Palm Beach to Orlando, we traded more time on the road for a visit to Cape Canaveral. (Way) more than 30 minutes, but the kids didn't notice neither that nor the 5 minutes stop to fill the tank...
Oh well, at least if there is going to be some kind of valet service around superchargers, it's going to be more healthy than a job filling up tanks.
However the time and costs to build them are really pretty small (and will continue to improve with scale). You can easily put them in wherever there is parking and a grid connection.
Businesses, restaurants, malls, hotels, etc, are already starting to figure out that having charging is a great way to attract more customers. We'll see this snowball as market share of EVs grows, and it will get to the point where you can charge at most attractions you'd conceivably want to stop on a long trip.
Tesla's move to PAYG supercharging is also positive for the wider charging industry and should encourage more investment by 3rd-parties.
Supercharging time is almost never wasted. You (and the kids) need a break after 3-4 hours on the road anyway. Quite often, in my experience, the car is recharged and ready to go well before the occupants are!