Starbucks' Green Dot Assist is one of many AI "assistants" designed to help in-store staff with recipes, policies, and guest interactions. Illustration by Budrul Chukrut/SOPA Images/LightRocket via Getty Images AI "assistants" are transforming fast food with real-time data analysis and staff coaching. Chains like Burger King and Starbucks want AI to streamline tasks and improve customer service. Critics aren't sure that the digital coworkers are helpful — and some think they're a hindrance. At