Wait, doubling it -to- 15 dollars an hour? Holy shit, I knew it was bad, but that is insane. Ours is already starting to feel too low at 17.40 here in Canada, granted that is about the equivalent of around $12.50 USD. So it's lower than what she is proposing, maybe if she manages it, we'll be able to get ours up.
It varies by province and at the federal level in Canada, 17.40 is for BC specifically, Alberta and Saskatchewan are the lowest at 15, Nunavut is the highest at 19 and it's 17.30 for jobs under federal jurisdiction.
The last place I worked upped their minimum wage to $10 an hour. It certainly wasn't because of benevolence or federal shifts...they slowly realized that when you pay the absolute minimum, you only attract the minimum talent, and most of those positions had very high turnover rates that were costing the company more than it'd be to just raise the starting pay rates.
Unfortunately in my state where the minimum wage is higher than the federal, many service industry companies refuse to learn that lesson. Or they think 16 cents above minimum wage is enough to attract top tier talent.