[zrobotics]

Neither you or your parent is incorrect; this behavior is variable. I setup 8 new win10 boxes last week, 2 of them (HP, the others were Dell) required pulling a lan cable to get to the local account setup. I didn't have time to check details to see what was different (I'm not really IT, but small company/many hats) but the local account option didn't appear until the internet was disconnected.

[thedaemon]

Windows 10 Pro, I've installed it about 40 times or more. Domain Join is the option to create a local account. It works, I do it every install, while connected to network.