I have a less than five mile commute. I've considered various options but in the end it's such a short distance why bother? I could drive something incredibly inefficient and it wouldn't matter.
What if it rains? I need to suddenly pick up the kids? On top of that we don't have very wide shoulders on the roads and a lot of people are bad drivers.
My wife is excited about it because 1. she can "park" closer to her job (on a campus), 2. she can get an hour of variable intensity outdoor exercise of her choosing for the "cost" of only an extra 30 minutes vs. using the car, 3. She can go to as needed basis for a parking pass (yes, her work charges her to park), 4. Decreased miles on the car. It could break tomorrow, but potentially our old Outback could make it another 5+ years with decreased city miles. Appeals to me from a cost standpoint. Plus, as mentioned above, there's some family utility to an e-bike. I would totally use it for small "whoops, we forgot this and need it for dinner tonight" grocery store runs. Our area has wide bike lanes or MUPs available, though. That's a big difference.