Gender does matter though. Men can sire offspring into their 60s, women have marked decline in fertility starting from 32 and hit an absolute wall (menopause) by their fifties.
Men offspring-ing in their 60's and dying 10 years later is perfect way to build a society where kids get to grow up without their fathers when they need them the most
Men can sire offspring into their 60s but not without some increased risk of undesirable outcomes such as their kid having schizophrenia https://en.wikipedia.org/wiki/Paternal_age_effect