Solved with traditional pt jobs, not so much when you join at will. I may work today but because exams, vacation, etc, might not get back in till weeks from now. Maybe I want to just try out a job.

Thjs kind of dipping in and out does not work for a restaurant whose work demand is inelastic. It works for the übers because its elastic. One gal or guy not coming in doesn't cause mayhem in the shift. Surge pricing also helps. You're not going to tolerate surge pricing at restaurants, for example.

So the work demand is different, it's much more flexible and you need a classification which allows for dabblers, people who might work for five or ten different outfits one week, none the next and one the third.