I was a bit shocked that mine needed new pads and disks after just 24k miles, especially as I rarely use the brake.
I am sure previous cars have done 40-60k...
Anyway, further investigation showed that one of my calipers was binding a little. A new caliper was also required
Needless to say that since everything was replaced (by a local mechanic not £2,000 from Mitsy dealer) they are not binding anymore and the EV range has increased by about 20%.
I guess it was from lack of use that they seized so I tend to use them a bit more than I did before.