Like browsing TikTok or messaging your friends? People want their devices to work like their friends’ devices do. Your prediction seems to be out of touch with how and why people actually use computing devices. Nobody actually uses them to "perform tasks".
Maybe we need an app store just for agents to make purchases. Imagine a world where startups have their valuations determined by how many agents are using their apps. Those startups... Also operated by agents. We don't even need users anymore!!!