When teenager Sari Smith launched a sugar-free drink business in July, things got off to a rough start.The 16-year-old went door-to-door flogging her products, but only one person answered the door and they refused to try her drinks sweetened with monk fruit. “I don’t know if people didn’t want to buy homemade stuff or they were nervous because of Covid-19,” she said. “I didn’t make many sales. It was hot and the sun was horrible. I felt like going home.”Walking around town, things d