Why do people these days act like it's bad to get pregnant at age 30 or older when it's the normal?

women who give birth after age 30 have a lower risk of endometrial cancer

women whose last childbirth occurred at age 40 or older had a 44% decreased risk of endometrial cancer compared with women whose last birth was under age 25

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12 d
my mom was 30 or 30 something when she had her first child and 40 when she had her third and last child. everyone is healthy
Why do people these days act like it's bad to get pregnant at age 30 or older when it's the normal?
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