I think the main problem to solve here is that the drivers and kitchen staff barely earn a living wage. Personally, I would be very happy to pay much more for a service that uses reusable containers and pays everyone involved a living wage, plus a decent profit margin for the restaurant owner. So I think this might need to be a very niche service for relatively wealthy people.
Unfortunately, I think history shows that there isn't way to convince the average consumer and restaurant owner to take part in a system like this. It might work in Australia or New Zealand, where they already have a reasonable minimum wage. But these countries generally have a very low population density, and also a very different attitude towards food delivery. (Most people cook most meals at home, so it's not something you order 2-3 times a day.)