I don’t know if you realize how condescending it sounds to hear you say you “don’t want to ruin whatever enjoyment she gets out of it” by telling her… what? That you arbitrarily look down on the use of this absolutely grammatical construction?
The thing that bothers me most about stuff like this is that it is effectively some kind of “gotcha” that makes people feel foolish, like their natural, completely grammatical speech has errors, or something they should feel bad about.
I don’t know what country you are from or how your voting system works. But I will guess that your country has many parties and after the election, a governing coalition is formed.
In the US voting system, similar parties get punished by stealing votes from each other. So, in effect, we have to form our coalitions before the election and choose the single candidate that will stand for all of us. So, you can think of the Democratic Party as the Democratic Coalition, made up of some truly left-wing factions, as well as some not very left-wing or even centrist factions, and so our candidate will be much more watered down than what you’d see in a different system.