In many parts of North America you cannot function in society without a license. Therefore, we have sympathy for people because are we going to ask people who a

In many parts of North America you cannot function in society without a license. Therefore, we have sympathy for people because are we going to ask people who aren't good drivers to put their lives on hold on the off chance they kill someone? Better to let them all drive and vilify the unfortunate ones that do. However, with machines they have no personal lives so they are afforded no slack. Humans get to make mistakes because they are only human, but machines get no such affordances... even if the net benefit is there.