battery packs are often structural components, this idea would make that impossible, reducing durability and safety.
not all batteries are identical. there are many different capacities and wear levels. imagine bringing in your new car for electricity and getting an old battery back. the battery is a huge portion of the cost of the car- now you have an old one!
The rest of your points are things that battery swapping needs to address. But yet here we are - a Chinese EV company has 3000 battery swap stations in operation: https://cnevpost.com/2024/12/31/nio-adds-record-high-swap-st...
This is not true. A battery can be structural and swap-able. The structure is determined by what it has to survive in a crash. While standing still in a battery swap station, your car does not need to clear those requirements.
So as long as it crash safe once the new battery is put into place, your are completely fine.
the batteries could be replaced at the station, or whoever uses your battery, that individual pays you for using it... and the station only gets a cut.
everything is solvable.