These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
What Do You Mean, It's Not for Kids?: The film is rated PG, and it does star Julie Andrews, and it's a musical, but it's intended for adults. (It helps that the movie came out in 1982. The PG-13 rating wasn't created until 1984.) That said, in terms of vulgarity, it's no worse than primetime TV or any given James Bond film. If parents are fine with mobsters, gay romance, Drag Queens, implied sex and a teensy bit of language ("Honey, I'm horny!"), there's nothing to stop them from enjoying it with their pre-teens.