I think you overestimate today's driving public. Most don't know how to change a tire even with spares and tools, and wouldn't do it even if they knew how. They just call someone, even many with spares. Goes for cars, home repairs, appliances, consumer electronics, etc. - there's little interest in fixing anything, despite being shown how on YouTube - a resource we didn't have before.
I've known lots of people who never checked their spares, and when they needed it, the spare was flat or rotted out.