In rural areas-—electric won’t work.
I do NOT know how many miles MY mail carrier drives each day, but she has 482 customers.
There are many areas FAR MORE RURAL than mine.
When I was in Wyoming in 2001, rancher told me that they get mail only 3 days a week—M-W-F & their carrier had a differnt route the other 3 days.
That rancher went over 98 miles ONE way to shop in Laramie. Her kids rode the school bus over 80 miles round trip to attend school.
Rural mail carriers drive their own vehicles — at least everywhere I have lived. So this mandate is utterly irrelevant to rural.