Hahahaha, so funny you say that. I was just thinking finally a LPT that isn't either ridiculous or obvious. I have definitely walked by the desert table a few times waiting for someone else to take the first piece. I will eventually just do it myself and that seems to happen pretty dang often. Maybe that's just confirmation bias or whatever but this idea is novel, simple, and helpful. Great Life Pro Tip in my opinion.

Sure, and you spend the same amount of money for 1 person as you do for the max capacity of your vehicle when driving but it would be 5x the price on the train. I totally agree we have a lot to work on but we don't have to account for every single scenario. The train between DC and NYC, and all the cities in between, is cheap, reliable, and fast and the reason is because ridership is high enough to pay for the service. Make a more reliable and comfortable local public transit and it will work the same way. Nothing will eliminate private vehicles but if you greatly reduce their need it's a lot easier to solve some of these other problems like traffic, parking, emissions, etc...

Challenge flag! It's way cheaper for me to take the train between major east coast cities than it is to drive. And it's ridiculously cheap to take a bus, even between non major cities. Density is the name of the game though. Like you said, you can't have all this infrastructure and only 50% ridership.

Which seems like a no brainier if this is a business. EVs are both cheaper to operate and cheaper to maintain. Assuming the break even time is less than the service life of the vehicle, it would be a good business move to go to electric.