China’s humanoid robots have captivated the world. A rental market is exposing their limits

By John Liu, Fred He, CNN Hong Kong/Hangzhou/Beijing (CNN) — When humanoid robots dominated the stage of last year’s Spring Festival Gala with sleek dance routines, Ai Lin saw more than a spectacle. He saw a business. Soon after, the e-commerce livestreamer in Hangzhou shelled out $30,000 for his first android and turned it into