Should I have asked for anything other than minimum wage? (detals inside)

6 months ago I applied to McDonalds career fair in Canada and I didn’t get the job . Instead they renovated and put in self-serve kiosks (that don’t always work, but that’s another story). When asked for what I want as a wage I said minimum wage. Should I have said a different amount like $20/hour and let the HR lady haggle me down to minimum wage? In Alberta the minimum wage is going up to $15 a hour in a year or two.