I've been driving my Model 3 for 2.5 years now and have NEVER needed to charge anywhere but at home. Supercharger costs would/should only be a concern if you take a lot of long trips. I'd 90+% of EV drivers operate within the round trip range of their cars nearly all the time. If they don't they probably should have thought about their choice harder.
I agree with the first part, but not the second. Long drives can be absolutely manageable with a Model 3. Not quite as cost effective but definitely manageable.
I’m sitting on 7000 miles of free supercharging that are good through mid 2023. They’ll almost certainly expire long before I use them....