Why does Wanda's accent change in Avengers: Endgame and Wanda Vision?

Marvel comics responded that Wanda was trained in spy art under the guidance of the black widow, which made her get rid of her accent and integrate into the new American environment. However, Elizabeth Olsen said:

"The Sokovia accent was invented by me, Aaron and our dialect coach, because this is a pseudo-country, and we can find different sources of Slavic pronunciation. We want to make sure it doesn't sound like Russian, because black widows speak Russian, so we just need to sound more like Slovak. So we created these sound changes. Aaron's British accent is basically going to Slovakia, and my American accent makes us sound sympathetic.

Then all of a sudden, all these different characters have to speak this language in different movies. So it took a lot of time for Sokov via accent. It didn't go anywhere. Everything happens for a reason. When she started living in America, everything became easy. In Wanda man wa lane, she played the role of an American sitcom, so this role will not disappear. It must still be there. "

According to Marvel Comics, Wanda learned how to use an American accent as part of the black widow spy training.

In addition to helping espionage, being able to wear an American accent can not only help her integrate into daily life, but also make it easier for people to get along with her and her abilities if they think she is American:

In addition to helping espionage, being able to wear an American accent can not only help her integrate into daily life, but also make it easier for people to get along with her and her abilities if they think she is American:

It seems like a good idea when she doesn't have many conversations in The Ultron Times, but as she becomes a more prominent role, it will be easier for her (and possibly the audience) if she only speaks with a normal accent.

Is it the endgame or Wanda hallucination? This is another part of the reality of her sitcom. In the play, she speaks with an American accent, which you will hear from these characters. However, when she thought of Pietro, she began to speak more naturally.

Elizabeth Olsen answered this question in the interview and confirmed that the accent has not disappeared. This is just a sitcom. They work too hard, so they can't give up.

He may be trying to forget her past and only think about her imaginary Xijing town. As the toaster advertisement says, "Forget the past, this is your future." Just an idea. ...