I think what you're going to see with any minimum wage hike is that businesses who have thin margins, namely restaurants and small stores, will be forced to go out of business or be forced to degrade their quality of service. Labor costs are for any business the biggest line-item expense. Spending on "robo waiters" or what have you is a big upfront capital expenditure, and I doubt many restaurants will be able to finance it. But it's not just small establishments: even Walmart is very exposed to these wage hikes. While it appears like they have lots of money, a lot of how they do what they do is based on cheap labor.
In SF, after they boosted the minimum wage, I observed a few stores go out of business. I'm all for people being paid more, but I doubt people losing their jobs altogether was the intended consequence.
Another thing I observed was the price of eating out in SF rose considerably. I remember feeling shocked that for a simple lunch (certainly not a luxury), I paid over $30. Things like that hurt people on the lower end of the economic spectrum, especially since poorer people are very sensitive to food prices.
The sad thing is: after taxes, if somebody is working the maximum hours they can without being a full-time employee (which very few minimum wage earners are), this would only net them an extra $450/mo. at most, which doesn't seem like it would be enough to have a big impact on somebody's life.
Perhaps I am cynical, but I don't see these wage hikes as having a net positive impact. What drives up wages is a shortage in the labor supply and businesses that need more skilled employees who they are willing to train and keep for awhile. A minimum wage hike just gives businesses more reasons not to hire people.