Doesn't seem to have hurt Seattle:The $15 per hour minimum wage was first tried in Seattle a few years back. Doing so had lots of unintended consequences. Ie. Right out of the gate, you saw the introduction of automated ordering kiosks at McDonalds stores. Many employee perks that they enjoyed at their lower salary went away (benefits, paid for parking, free food and drinks at the office, etc) all went away. There are many articles on this on the internet.
This is going to be a bad plan as it will be on the backs of business owners. The low skill minimum wage earners will be the ones that suffer the most as they won't be able to find a job to get skills, every entry level minimum wage job will require experience.
Cheers
Seattle once again nation’s fastest-growing big city; population exceeds 700,000