Unfortunately your solutions could result in actually encouraging a novice rider to use the small-small combo excessively, possibly most of the time, as it's too much trouble to shift the front - or even the rear. Then you will be in the position of explaining to her why her chain and small cog wore out so quickly. If you offset the rear triangle you will also be blessing her with a bike that may veer to one side if ridden no hands. Unless you re-dish the wheel she may also wonder why her wheel is not centered, or why the brakes don't hit the rim at the same time. I already spoke to the problem of making the large chainwheel with larger cogs chainline worse. Of course if you properly align the dropouts with each other after resetting the triangle the cogs will no longer be in the same plane at the chainwheels. But if, after asking for advice you choose to ignore both the better solutions offered and the counsel to reconsider encouraging that combo, then damn the torpedoes.