Last week I went through the tedium of providing all of the requisite information when trying to book a 2014 Toyota Prius for 1 day @ $50.40 through Turo. On the final step of the reservation flow, Turo revealed an additional $50.40 service fee. Seeing the total price double didn't sit well. I promptly exited the reservation flow and deleted my account.
I agree with your sentiment - if the app shared the service fee prior to the final step of the booking flow, I may have still reserved the car. Even at a total of $100.80, the price was still less than other nearby options.
While this may have been true a few decades ago, most modern workplaces don't require their employees to live in the closet.