Anybody can do it
You can hire just about anybody to do the job as long as they are capable of riding a bike, which most people are. This means that companies that switch to cargo bikes are not only doing themselves a favour, they’re also providing potential jobs to all the people in the city who don’t have a driver’s license.
The abysmal job market thanks you for your help in that regard. And hey, you don’t even have to lay off your current drivers if you’re making the switch, because most people can ride bicycles!