Is thinking no one will recognize you just because you changed your looks too naive for even a teen girl?

Many months ago, some girl in my HS really thought some people wouldn't recognize her just for getting rid of her glasses (replacing it with contact lenses), switching hair style, dying her hair and changing the way she dresses up. Some people complimented on her change while others thought it was overdone but she was 100% obviously, still recognizable. After a while, it got old and no one was impressed anymore nor care too much.

She watched an old, Spanish soap opera called Soñadoras (dreamers) where some awkward, shy girl changes her posture, her hair style, clothes and attitude and her classmates don't recognize her. She gives a false name and they all think she's someone else. LOL

Is this too naive for even a teen girl?

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She really believed on that soap opera and got disappointed when all of us recognized her.
Is thinking no one will recognize you just because you changed your looks too naive for even a teen girl?
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