Sarah Hunter’s daycare, the Imagination Tree, is struggling under the federal $10-a-day childcare program. (Photography by Leah Hennel) My mother started Riverbend Daycare in Calgary in 1987, and I started working there soon after it opened. I was 18, and I quickly learned that childcare isn’t a typical nine-to-five job: you become part of families’ lives. Over the years, I got to know their stories, shared in their hardships and celebrated thei…