Playing offline with Steam-downloaded games is totally feasible, yes it is. Except that after two weeks it will force you to reconnect to steam even when you prompt it to play offline. Now that could have been a bug back in the day and they fix it since. Yet I still come across posts on other game forms about the same thing. Game will not start with out connecting to steam first, then going to offline again. So I can only assume since I don’t game on my gaming pc do to my wife broke it now that its still there.
You ever hear that old saying about what happens when you assume?
There are ways around that, if connecting to the internet makes you that upset (and to be fair, I don't really understand why you'd have a problem with it in the first place). And I haven't heard of that happening with playing Skyrim in Offline Mode.

