Regarding battery degradation - I've owned my EV for 4.5 years now, and its battery is still at 93% of its original capacity. That equates to maybe 10 miles of range lost, from an original range of around 230 miles. At that rate, it'll still be giving usable range in 10, 15 years from now. It's even warrantied to keep over 75% of its original capacity for 8 years / 100,000 miles - if it fails to achieve this (likely due to some defect), it's replaced for free.

And when it does eventually need replacing, it can be recycled into something like a home storage battery - where the power demand is not as high, but still more than enough to power everything in your home for days. Meanwhile, the car can be upgraded to a brand new battery, which will likely last even longer.

Edit: In fact, I tell a lie - I did have to replace a battery on my EV recently. The 12v lead-acid battery, that ICE cars also rely on.