I uploaded a photo with a picture of myself (I'm 25) and my 11-year old sister. I got guessed as 44, she was guessed at 74. I know I look older than my age (th

I uploaded a photo with a picture of myself (I'm 25) and my 11-year old sister. I got guessed as 44, she was guessed at 74. I know I look older than my age (though I wouldn't think 19 years older), but my 11-year-old sister coming up as 74 was surprising. What's 63 years, give or take?