You're greatly overestimating the reliability of such technology and greatly underestimating the costs of it. There's a reason automation has not replaced these

You're greatly overestimating the reliability of such technology and greatly underestimating the costs of it. There's a reason automation has not replaced these roles, it's simply not (yet) capable or cost effective. Source: I worked for a startup that built restaurant automation solutions and witnessed first-hand how difficult this is. It'll get there some day, but we're a long ways off.