I’m a software developer. No crashes or glitches here! ;-)
Completed without “incident or problem” depends on your definition? Every journey will have some (usually very minor) issue caused by a human. It’s all these little things that add up to the likes of traffic jams etc
The issues are not all incompetence. At least a computer driver won’t be aggressive, impatient, be distracted by the kids (that last one was the excuse the woman used when she hit the back of my car the other week!)