In some scenarios, it is inconvenient/unnecessary to login with a password, for example, when using Chromebook as a home server or kiosk.
However, ChromeOS doesn't provide any way to enable auto-login or to disable the sign-in password (there was such a feature on macOS many years ago). And Google have no interest in adding this functionality also.
Recently I installed ChromeOS on my HTPC, planning to use it as a TV box (and the same trouble annoyed me). So I created a program to do it for me.