Actually in the book she is really not. She is a 12 year old child being sexualised in the mind of the narrator. She doesn't act seductively, the narrator sees whatever she does in a perverted way.
There is a famous interview on French TV where Nabokov says as much (in French) [0]
I suppose that your interpretation would be dependent on if you are postmodernist or not and if you believe in the death of the author.
I have never read the book or seen the file but the work is very interesting to me as when it get brought up people will start claiming all sorts of things from it.
I think the most insane from my point of view was when I heard/saw(can't remember if online or in person) an argument that all men are perverted and want to rape children. The proof was quotes from Lolita....
I recommend you to read the book, I think that the film doesn't (can't?) do it justice. The book being written from the point of view of the narrator is crucial: the reader is put in the mind of a pedophile (we are told that he is in jail). I also suggest imagining the girl as a child, before puberty at the start of the story.
The case study of Lolita is interesting because there are two competing readings. The fact that the character is often associated to seduction and jailbait in popular culture is arguably symptomatic of a culture of blaming the victims of this kind of crimes. Obviously not all men are perverts but I sometimes wonder if those of us who aren't don't underestimate the number of those who are.
There is a famous interview on French TV where Nabokov says as much (in French) [0]
[0] https://www.ina.fr/actualites-ina/mon-archive-preferee/mon-a...