The first problem is that Ginger Rogers was 31 years old when the movie was filmed (1942). With all the best will in the world- not to mention with pigtails & bobbysocks- she never looks twelve. I've criticized other films for this: Rent, Where Angels Fear To Tread, To Catch A Thief, and Grease for example, so The Major And The Minor shouldn't get a free pass for it even if I don't loathe the movie the way I do Grease or- gak-Rent.
This problem with the movie kind of bleeds into the next... how to keep it from being creepy.
On the other hand, The Major And The Minor is not without its charms and there are things about it which I did actually enjoy. I'll discuss these in Part II of this analysis.