That's the thing: the amount of sysadmin role I would like to play for my family is nearly 0. And, no simple file sharing or accessing NAS systems shouldn't require a "sysadmin".

They should work out of the box for a consumer computer system with minimal configuration and updates shouldn't break functionality. Windows provides this Linux doesn't.

Windows OS design, the overall mentality of the developers designing software for Windows also reinforces this pattern. A consumer system should keep working without asking user unnecessary questions. They have to be designed to be somewhat future proof so breaking binary and configuration compatibility is minimal. With Linux systems (or any bazaar-style OS) this is impossible.