To be equivalent, you'd have to say that McDonalds is able to provide food anywhere at any time. My house at 6am, downtown at lunch, late night at 2am. In fact, the only way to do this is to use Uber Eats or something similar. And no, delivery drivers have never been that ubiquitous.

Your definition of on-demand is more like a bus or train, not lyft or uber. i.e. you have to actually go to a bus stop or train stop, which could be out of the way, and you have to deal with their schedule. That's hardly on-demand.

Uber and lyft's business model is absolutely based on being on-demand. I would take a bus or train if it was even close to as convenient.

They also work a schedule and do not get to work at BK and Mcds at the same time waiting for the next order.