Why did she just tell me her age?

Well since I am 37 and I talk to this girl sometimes. And I used to talk to her Mom. And I said I wouldn't keep up with it "Because she is like 17" And she just corrected me "18 but yeah Haha"

Why did she tell me that?
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+1 y
I try to keep my Birthdate off of here.
Why did she just tell me her age?
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