Cafes have become symbols of passion, community, and cultural capital. But the reality of burnout is much less rosy, said owners both past and present. Ms Chanel Li was eight years old when she got her first oven.   Her passion for baking only grew stronger with parent-child classes her mother took her to. She later became a flight attendant in adulthood, but while stowing packets of Irvins salted egg fish skin into overhead galley compartments, she dreamt about a day when other cabin